1231033041137 has 2 divisors, whose sum is σ = 1231033041138. Its totient is φ = 1231033041136.

The previous prime is 1231033041109. The next prime is 1231033041149. The reversal of 1231033041137 is 7311403301321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1227843502561 + 3189538576 = 1108081^2 + 56476^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231033041137 - 2¹² = 1231033037041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231033041107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615516520568 + 615516520569.

It is an arithmetic number, because the mean of its divisors is an integer number (615516520569).

Almost surely, 2^{1231033041137} is an apocalyptic number.

It is an amenable number.

1231033041137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231033041137 is an equidigital number, since it uses as much as digits as its factorization.

1231033041137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 1231033041137 its reverse (7311403301321), we get a palindrome (8542436342458).

The spelling of 1231033041137 in words is "one trillion, two hundred thirty-one billion, thirty-three million, forty-one thousand, one hundred thirty-seven".