1231223201032 has 128 divisors (see below), whose sum is σ = 2579484528000. Its totient is φ = 546223472640.

The previous prime is 1231223200897. The next prime is 1231223201099. The reversal of 1231223201032 is 2301023221321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1231223200994 and 1231223201012.

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, 710456838 + ... + 710458570.

It is an arithmetic number, because the mean of its divisors is an integer number (20152222875).

Almost surely, 2^{1231223201032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231223201032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289742264000).

1231223201032 is an abundant number, since it is smaller than the sum of its proper divisors (1348261326968).

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

1231223201032 is a wasteful number, since it uses less digits than its factorization.

1231223201032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1231223201032 its reverse (2301023221321), we get a palindrome (3532246422353).

The spelling of 1231223201032 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-three million, two hundred one thousand, thirty-two".