1121607867831 has 12 divisors (see below), whose sum is σ = 1643788941816. Its totient is φ = 679762343920.

The previous prime is 1121607867827. The next prime is 1121607867859. The reversal of 1121607867831 is 1387687061211.

It is not a de Polignac number, because 1121607867831 - 2² = 1121607867827 is a prime.

It is a super-2 number, since 2×1121607867831² (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 (1121607867871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1544914056 + ... + 1544914781.

It is an arithmetic number, because the mean of its divisors is an integer number (136982411818).

Almost surely, 2^{1121607867831} is an apocalyptic number.

1121607867831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121607867831 is a deficient number, since it is larger than the sum of its proper divisors (522181073985).

1121607867831 is a wasteful number, since it uses less digits than its factorization.

1121607867831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089828862 (or 3089828851 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 51.

The spelling of 1121607867831 in words is "one trillion, one hundred twenty-one billion, six hundred seven million, eight hundred sixty-seven thousand, eight hundred thirty-one".