125261000131 has 2 divisors, whose sum is σ = 125261000132. Its totient is φ = 125261000130.

The previous prime is 125261000003. The next prime is 125261000153. The reversal of 125261000131 is 131000162521.

It is a happy number.

It is an a-pointer prime, because the next prime (125261000153) can be obtained adding 125261000131 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125261000131 - 2⁷ = 125261000003 is a prime.

It is a super-2 number, since 2×125261000131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125261100131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62630500065 + 62630500066.

It is an arithmetic number, because the mean of its divisors is an integer number (62630500066).

Almost surely, 2^125261000131 is an apocalyptic number.

125261000131 is a deficient number, since it is larger than the sum of its proper divisors (1).

125261000131 is an equidigital number, since it uses as much as digits as its factorization.

125261000131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 125261000131 its reverse (131000162521), we get a palindrome (256261162652).

The spelling of 125261000131 in words is "one hundred twenty-five billion, two hundred sixty-one million, one hundred thirty-one", and thus it is an aban number.