1235121413 has 8 divisors (see below), whose sum is σ = 1316245248. Its totient is φ = 1156282864.

The previous prime is 1235121373. The next prime is 1235121463. The reversal of 1235121413 is 3141215321.

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

It is not a de Polignac number, because 1235121413 - 2⁸ = 1235121157 is a prime.

It is a super-2 number, since 2×1235121413² = 3051049809702233138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235121463) 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, 570206 + ... + 572367.

It is an arithmetic number, because the mean of its divisors is an integer number (164530656).

Almost surely, 2^1235121413 is an apocalyptic number.

It is an amenable number.

1235121413 is a deficient number, since it is larger than the sum of its proper divisors (81123835).

1235121413 is a wasteful number, since it uses less digits than its factorization.

1235121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142643.

The product of its digits is 720, while the sum is 23.

The square root of 1235121413 is about 35144.2941741615. The cubic root of 1235121413 is about 1072.9262818613.

Adding to 1235121413 its reverse (3141215321), we get a palindrome (4376336734).

The spelling of 1235121413 in words is "one billion, two hundred thirty-five million, one hundred twenty-one thousand, four hundred thirteen".