131020140013397 has 2 divisors, whose sum is σ = 131020140013398. Its totient is φ = 131020140013396.

The previous prime is 131020140013393. The next prime is 131020140013423. The reversal of 131020140013397 is 793310041020131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120226641673681 + 10793498339716 = 10964791^2 + 3285346^2 .

It is a cyclic number.

It is not a de Polignac number, because 131020140013397 - 2² = 131020140013393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131020140013393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510070006698 + 65510070006699.

It is an arithmetic number, because the mean of its divisors is an integer number (65510070006699).

Almost surely, 2^{131020140013397} is an apocalyptic number.

It is an amenable number.

131020140013397 is a deficient number, since it is larger than the sum of its proper divisors (1).

131020140013397 is an equidigital number, since it uses as much as digits as its factorization.

131020140013397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 131020140013397 in words is "one hundred thirty-one trillion, twenty billion, one hundred forty million, thirteen thousand, three hundred ninety-seven".