1172503351988 has 12 divisors (see below), whose sum is σ = 2052059510592. Its totient is φ = 586200634680.

The previous prime is 1172503351973. The next prime is 1172503351991. The reversal of 1172503351988 is 8891533052711.

It is a super-2 number, since 2×1172503351988² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

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, 12708620 + ... + 12800547.

It is an arithmetic number, because the mean of its divisors is an integer number (171004959216).

Almost surely, 2^{1172503351988} is an apocalyptic number.

It is an amenable number.

1172503351988 is a deficient number, since it is larger than the sum of its proper divisors (879556158604).

1172503351988 is a wasteful number, since it uses less digits than its factorization.

1172503351988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25520662 (or 25520660 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 1172503351988 in words is "one trillion, one hundred seventy-two billion, five hundred three million, three hundred fifty-one thousand, nine hundred eighty-eight".