2131101437 has 2 divisors, whose sum is σ = 2131101438. Its totient is φ = 2131101436.

The previous prime is 2131101431. The next prime is 2131101449. The reversal of 2131101437 is 7341011312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1178823556 + 952277881 = 34334^2 + 30859^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131101437 - 2⁶ = 2131101373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131101431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065550718 + 1065550719.

It is an arithmetic number, because the mean of its divisors is an integer number (1065550719).

Almost surely, 2^2131101437 is an apocalyptic number.

It is an amenable number.

2131101437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131101437 is an equidigital number, since it uses as much as digits as its factorization.

2131101437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2131101437 is about 46163.8542260067. The cubic root of 2131101437 is about 1286.8700911135.

Adding to 2131101437 its reverse (7341011312), we get a palindrome (9472112749).

The spelling of 2131101437 in words is "two billion, one hundred thirty-one million, one hundred one thousand, four hundred thirty-seven".