1030515131988 has 72 divisors (see below), whose sum is σ = 2675514478728. Its totient is φ = 334196368128.

The previous prime is 1030515131983. The next prime is 1030515131999. The reversal of 1030515131988 is 8891315150301.

1030515131988 is a `hidden beast` number, since 1 + 0 + 3 + 0 + 51 + 513 + 1 + 9 + 88 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17811037764 + 1012704094224 = 133458^2 + 1006332^2 .

It is a super-2 number, since 2×1030515131988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030515131981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28983870 + ... + 29019402.

Almost surely, 2^{1030515131988} is an apocalyptic number.

1030515131988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1030515131988 is an abundant number, since it is smaller than the sum of its proper divisors (1644999346740).

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

1030515131988 is a wasteful number, since it uses less digits than its factorization.

1030515131988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57353 (or 57348 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 1030515131988 in words is "one trillion, thirty billion, five hundred fifteen million, one hundred thirty-one thousand, nine hundred eighty-eight".