11623431 has 8 divisors (see below), whose sum is σ = 15513984. Its totient is φ = 7740920.

The previous prime is 11623411. The next prime is 11623453. The reversal of 11623431 is 13432611.

11623431 is a nontrivial binomial coefficient, being equal to C(4822, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11623431 - 2¹¹ = 11621383 is a prime.

It is a super-2 number, since 2×11623431² = 270208296423522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11623398 and 11623407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11623411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3616 + ... + 6026.

It is an arithmetic number, because the mean of its divisors is an integer number (1939248).

Almost surely, 2^11623431 is an apocalyptic number.

11623431 is the 4821-st triangular number and also the 2411-st hexagonal number.

11623431 is a deficient number, since it is larger than the sum of its proper divisors (3890553).

11623431 is a wasteful number, since it uses less digits than its factorization.

11623431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021.

The product of its digits is 432, while the sum is 21.

The square root of 11623431 is about 3409.3153271588. The cubic root of 11623431 is about 226.5225528080.

The spelling of 11623431 in words is "eleven million, six hundred twenty-three thousand, four hundred thirty-one".