1231366152 has 16 divisors (see below), whose sum is σ = 3078415440. Its totient is φ = 410455376.

The previous prime is 1231366141. The next prime is 1231366153. The reversal of 1231366152 is 2516631321.

It is a super-3 number, since 3×1231366152³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231366153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25653438 + ... + 25653485.

It is an arithmetic number, because the mean of its divisors is an integer number (192400965).

Almost surely, 2^1231366152 is an apocalyptic number.

1231366152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231366152 is an abundant number, since it is smaller than the sum of its proper divisors (1847049288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231366152 is a wasteful number, since it uses less digits than its factorization.

1231366152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51306932 (or 51306928 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 1231366152 is about 35090.8271774833. The cubic root of 1231366152 is about 1071.8378035774.

Adding to 1231366152 its reverse (2516631321), we get a palindrome (3747997473).

The spelling of 1231366152 in words is "one billion, two hundred thirty-one million, three hundred sixty-six thousand, one hundred fifty-two".