2231311331032 has 128 divisors (see below), whose sum is σ = 4971783905280. Its totient is φ = 918656640000.

The previous prime is 2231311331017. The next prime is 2231311331047. The reversal of 2231311331032 is 2301331131322.

It is an interprime number because it is at equal distance from previous prime (2231311331017) and next prime (2231311331047).

It is a super-3 number, since 3×2231311331032³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231311330988 and 2231311331006.

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, 623095482 + ... + 623099062.

It is an arithmetic number, because the mean of its divisors is an integer number (38842061760).

Almost surely, 2^{2231311331032} 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 2231311331032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485891952640).

2231311331032 is an abundant number, since it is smaller than the sum of its proper divisors (2740472574248).

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

2231311331032 is a wasteful number, since it uses less digits than its factorization.

2231311331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2231311331032 its reverse (2301331131322), we get a palindrome (4532642462354).

The spelling of 2231311331032 in words is "two trillion, two hundred thirty-one billion, three hundred eleven million, three hundred thirty-one thousand, thirty-two".