131211013049 has 2 divisors, whose sum is σ = 131211013050. Its totient is φ = 131211013048.

The previous prime is 131211012967. The next prime is 131211013091. The reversal of 131211013049 is 940310112131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76995150400 + 54215862649 = 277480^2 + 232843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131211013049 is a prime.

It is not a weakly prime, because it can be changed into another prime (131211013099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65605506524 + 65605506525.

It is an arithmetic number, because the mean of its divisors is an integer number (65605506525).

Almost surely, 2^131211013049 is an apocalyptic number.

It is an amenable number.

131211013049 is a deficient number, since it is larger than the sum of its proper divisors (1).

131211013049 is an equidigital number, since it uses as much as digits as its factorization.

131211013049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 131211013049 in words is "one hundred thirty-one billion, two hundred eleven million, thirteen thousand, forty-nine".