1308987692100 has 243 divisors, whose sum is σ = 4511154421501. Its totient is φ = 317238820800.

The previous prime is 1308987692039. The next prime is 1308987692123. The reversal of 1308987692100 is 12967898031.

The square root of 1308987692100 is 1144110.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 471235569156 + 837752122944 = 686466^2 + 915288^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 377554567 + ... + 377558033.

Almost surely, 2^{1308987692100} is an apocalyptic number.

1308987692100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1308987692100 is the 1144110-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1308987692100

1308987692100 is an abundant number, since it is smaller than the sum of its proper divisors (3202166729401).

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

1308987692100 is a wasteful number, since it uses less digits than its factorization.

1308987692100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6976 (or 3488 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 1308987692100 in words is "one trillion, three hundred eight billion, nine hundred eighty-seven million, six hundred ninety-two thousand, one hundred".