1031232144402 has 80 divisors (see below), whose sum is σ = 2373870807000. Its totient is φ = 334398378240.

The previous prime is 1031232144391. The next prime is 1031232144421. The reversal of 1031232144402 is 2044412321301.

1031232144402 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 2 + 3 + 214 + 440 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 611666332281 + 419565812121 = 782091^2 + 647739^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2095624 + ... + 2540492.

Almost surely, 2^{1031232144402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031232144402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186935403500).

1031232144402 is an abundant number, since it is smaller than the sum of its proper divisors (1342638662598).

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

1031232144402 is a wasteful number, since it uses less digits than its factorization.

1031232144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445273 (or 445264 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1031232144402 its reverse (2044412321301), we get a palindrome (3075644465703).

The spelling of 1031232144402 in words is "one trillion, thirty-one billion, two hundred thirty-two million, one hundred forty-four thousand, four hundred two".