1161357831930 has 32 divisors (see below), whose sum is σ = 2788279593408. Its totient is φ = 309582000000.

The previous prime is 1161357831913. The next prime is 1161357831983. The reversal of 1161357831930 is 391387531611.

It is a self number, because there is not a number n which added to its sum of digits gives 1161357831930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7005571 + ... + 7169430.

It is an arithmetic number, because the mean of its divisors is an integer number (87133737294).

Almost surely, 2^{1161357831930} is an apocalyptic number.

1161357831930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161357831930 is an abundant number, since it is smaller than the sum of its proper divisors (1626921761478).

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

1161357831930 is a wasteful number, since it uses less digits than its factorization.

1161357831930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14177742.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 1161357831930 in words is "one trillion, one hundred sixty-one billion, three hundred fifty-seven million, eight hundred thirty-one thousand, nine hundred thirty".