102400231 has 8 divisors (see below), whose sum is σ = 109478304. Its totient is φ = 95439360.

The previous prime is 102400229. The next prime is 102400271. The reversal of 102400231 is 132004201.

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

It is not a de Polignac number, because 102400231 - 2¹ = 102400229 is a prime.

It is a super-2 number, since 2×102400231² = 20971614617706722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102400271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27490 + ... + 30991.

It is an arithmetic number, because the mean of its divisors is an integer number (13684788).

Almost surely, 2^102400231 is an apocalyptic number.

102400231 is a deficient number, since it is larger than the sum of its proper divisors (7078073).

102400231 is a wasteful number, since it uses less digits than its factorization.

102400231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58601.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102400231 is about 10119.2999263783. The cubic root of 102400231 is about 467.8431899097.

Adding to 102400231 its reverse (132004201), we get a palindrome (234404432).

The spelling of 102400231 in words is "one hundred two million, four hundred thousand, two hundred thirty-one".