1040102031440 has 20 divisors (see below), whose sum is σ = 2418237223284. Its totient is φ = 416040812544.

The previous prime is 1040102031383. The next prime is 1040102031457. The reversal of 1040102031440 is 441302010401.

It can be written as a sum of positive squares in 2 ways, for example, as 562422002704 + 477680028736 = 749948^2 + 691144^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1040102031440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6500637617 + ... + 6500637776.

Almost surely, 2^{1040102031440} is an apocalyptic number.

1040102031440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040102031440 is an abundant number, since it is smaller than the sum of its proper divisors (1378135191844).

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

1040102031440 is a wasteful number, since it uses less digits than its factorization.

1040102031440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001275406 (or 13001275400 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1040102031440 its reverse (441302010401), we get a palindrome (1481404041841).

The spelling of 1040102031440 in words is "one trillion, forty billion, one hundred two million, thirty-one thousand, four hundred forty".