2231131001232 has 80 divisors (see below), whose sum is σ = 6711434547840. Its totient is φ = 625438334976.

The previous prime is 2231131001191. The next prime is 2231131001293. The reversal of 2231131001232 is 2321001311322.

It is a super-3 number, since 3×2231131001232³ (a number of 38 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2231131001199 and 2231131001208.

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, 62626257 + ... + 62661872.

It is an arithmetic number, because the mean of its divisors is an integer number (83892931848).

Almost surely, 2^{2231131001232} is an apocalyptic number.

It is an amenable number.

2231131001232 is an abundant number, since it is smaller than the sum of its proper divisors (4480303546608).

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

2231131001232 is a wasteful number, since it uses less digits than its factorization.

2231131001232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125288200 (or 125288194 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2231131001232 its reverse (2321001311322), we get a palindrome (4552132312554).

The spelling of 2231131001232 in words is "two trillion, two hundred thirty-one billion, one hundred thirty-one million, one thousand, two hundred thirty-two".