1230311332 has 24 divisors (see below), whose sum is σ = 2270268000. Its totient is φ = 581774976.

The previous prime is 1230311321. The next prime is 1230311333. The reversal of 1230311332 is 2331130321.

It is a super-2 number, since 2×1230311332² = 3027331947295228448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1230311333) 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, 31419 + ... + 58717.

It is an arithmetic number, because the mean of its divisors is an integer number (94594500).

Almost surely, 2^1230311332 is an apocalyptic number.

It is an amenable number.

1230311332 is a deficient number, since it is larger than the sum of its proper divisors (1039956668).

1230311332 is a wasteful number, since it uses less digits than its factorization.

1230311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27915 (or 27913 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1230311332 is about 35075.7941036265. The cubic root of 1230311332 is about 1071.5316615100.

Adding to 1230311332 its reverse (2331130321), we get a palindrome (3561441653).

The spelling of 1230311332 in words is "one billion, two hundred thirty million, three hundred eleven thousand, three hundred thirty-two".