1231012232 has 32 divisors (see below), whose sum is σ = 2384743680. Its totient is φ = 595116480.

The previous prime is 1231012219. The next prime is 1231012243. The reversal of 1231012232 is 2322101321.

It is a super-2 number, since 2×1231012232² = 3030782230667243648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231012232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547703 + ... + 549945.

It is an arithmetic number, because the mean of its divisors is an integer number (74523240).

Almost surely, 2^1231012232 is an apocalyptic number.

It is an amenable number.

1231012232 is a deficient number, since it is larger than the sum of its proper divisors (1153731448).

1231012232 is a wasteful number, since it uses less digits than its factorization.

1231012232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493 (or 4489 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1231012232 is about 35085.7839017457. The cubic root of 1231012232 is about 1071.7351043154.

Adding to 1231012232 its reverse (2322101321), we get a palindrome (3553113553).

It can be divided in two parts, 12310 and 12232, that added together give a palindrome (24542).

The spelling of 1231012232 in words is "one billion, two hundred thirty-one million, twelve thousand, two hundred thirty-two".