125402621011 has 2 divisors, whose sum is σ = 125402621012. Its totient is φ = 125402621010.

The previous prime is 125402620997. The next prime is 125402621081. The reversal of 125402621011 is 110126204521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125402621011 - 2²⁹ = 124865750099 is a prime.

It is not a weakly prime, because it can be changed into another prime (125402621081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62701310505 + 62701310506.

It is an arithmetic number, because the mean of its divisors is an integer number (62701310506).

Almost surely, 2^125402621011 is an apocalyptic number.

125402621011 is a deficient number, since it is larger than the sum of its proper divisors (1).

125402621011 is an equidigital number, since it uses as much as digits as its factorization.

125402621011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 125402621011 its reverse (110126204521), we get a palindrome (235528825532).

The spelling of 125402621011 in words is "one hundred twenty-five billion, four hundred two million, six hundred twenty-one thousand, eleven".