131124190997 has 2 divisors, whose sum is σ = 131124190998. Its totient is φ = 131124190996.

The previous prime is 131124190973. The next prime is 131124191057. The reversal of 131124190997 is 799091421131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123674602276 + 7449588721 = 351674^2 + 86311^2 .

It is an emirp because it is prime and its reverse (799091421131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131124190997 - 2¹² = 131124186901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131124190937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65562095498 + 65562095499.

It is an arithmetic number, because the mean of its divisors is an integer number (65562095499).

Almost surely, 2^131124190997 is an apocalyptic number.

It is an amenable number.

131124190997 is a deficient number, since it is larger than the sum of its proper divisors (1).

131124190997 is an equidigital number, since it uses as much as digits as its factorization.

131124190997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 47.

The spelling of 131124190997 in words is "one hundred thirty-one billion, one hundred twenty-four million, one hundred ninety thousand, nine hundred ninety-seven".