1231021322232 has 128 divisors (see below), whose sum is σ = 3505764326400. Its totient is φ = 357344013312.

The previous prime is 1231021322213. The next prime is 1231021322243. The reversal of 1231021322232 is 2322231201321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651132 + ... + 1698827.

It is an arithmetic number, because the mean of its divisors is an integer number (27388783800).

Almost surely, 2^{1231021322232} is an apocalyptic number.

1231021322232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231021322232 is an abundant number, since it is smaller than the sum of its proper divisors (2274743004168).

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

1231021322232 is a wasteful number, since it uses less digits than its factorization.

1231021322232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350077 (or 2350073 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1231021322232 its reverse (2322231201321), we get a palindrome (3553252523553).

The spelling of 1231021322232 in words is "one trillion, two hundred thirty-one billion, twenty-one million, three hundred twenty-two thousand, two hundred thirty-two".