2131330031101 has 2 divisors, whose sum is σ = 2131330031102. Its totient is φ = 2131330031100.

The previous prime is 2131330031053. The next prime is 2131330031147. The reversal of 2131330031101 is 1011300331312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1851705879076 + 279624152025 = 1360774^2 + 528795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131330031101 - 2²¹ = 2131327933949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131330031401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065665015550 + 1065665015551.

It is an arithmetic number, because the mean of its divisors is an integer number (1065665015551).

Almost surely, 2^{2131330031101} is an apocalyptic number.

It is an amenable number.

2131330031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131330031101 is an equidigital number, since it uses as much as digits as its factorization.

2131330031101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 2131330031101 its reverse (1011300331312), we get a palindrome (3142630362413).

The spelling of 2131330031101 in words is "two trillion, one hundred thirty-one billion, three hundred thirty million, thirty-one thousand, one hundred one".