1231030231032 has 64 divisors (see below), whose sum is σ = 3599025281280. Its totient is φ = 343543318272.

The previous prime is 1231030231007. The next prime is 1231030231063. The reversal of 1231030231032 is 2301320301321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85196973 + ... + 85211420.

It is an arithmetic number, because the mean of its divisors is an integer number (56234770020).

Almost surely, 2^{1231030231032} is an apocalyptic number.

1231030231032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231030231032 is an abundant number, since it is smaller than the sum of its proper divisors (2367995050248).

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

1231030231032 is a wasteful number, since it uses less digits than its factorization.

1231030231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170408452 (or 170408448 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1231030231032 its reverse (2301320301321), we get a palindrome (3532350532353).

The spelling of 1231030231032 in words is "one trillion, two hundred thirty-one billion, thirty million, two hundred thirty-one thousand, thirty-two".