1031231133937 has 2 divisors, whose sum is σ = 1031231133938. Its totient is φ = 1031231133936.

The previous prime is 1031231133893. The next prime is 1031231134051. The reversal of 1031231133937 is 7393311321301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517549309281 + 513681824656 = 719409^2 + 716716^2 .

It is an emirp because it is prime and its reverse (7393311321301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031231133937 - 2⁷ = 1031231133809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031231133896 and 1031231133905.

It is not a weakly prime, because it can be changed into another prime (1031231131937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515615566968 + 515615566969.

It is an arithmetic number, because the mean of its divisors is an integer number (515615566969).

Almost surely, 2^{1031231133937} is an apocalyptic number.

It is an amenable number.

1031231133937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031231133937 is an equidigital number, since it uses as much as digits as its factorization.

1031231133937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 37.

The spelling of 1031231133937 in words is "one trillion, thirty-one billion, two hundred thirty-one million, one hundred thirty-three thousand, nine hundred thirty-seven".