1131310231000 has 64 divisors (see below), whose sum is σ = 2647427328000. Its totient is φ = 452496505600.

The previous prime is 1131310230977. The next prime is 1131310231039. The reversal of 1131310231000 is 1320131311.

It is a super-2 number, since 2×1131310231000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 26857956 + ... + 26900044.

It is an arithmetic number, because the mean of its divisors is an integer number (41366052000).

Almost surely, 2^{1131310231000} is an apocalyptic number.

1131310231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131310231000 is an abundant number, since it is smaller than the sum of its proper divisors (1516117097000).

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

1131310231000 is a wasteful number, since it uses less digits than its factorization.

1131310231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68989 (or 68975 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1131310231000 its reverse (1320131311), we get a palindrome (1132630362311).

The spelling of 1131310231000 in words is "one trillion, one hundred thirty-one billion, three hundred ten million, two hundred thirty-one thousand".