125880028091 has 2 divisors, whose sum is σ = 125880028092. Its totient is φ = 125880028090.

The previous prime is 125880028081. The next prime is 125880028097. The reversal of 125880028091 is 190820088521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125880028091 is a prime.

It is not a weakly prime, because it can be changed into another prime (125880028097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62940014045 + 62940014046.

It is an arithmetic number, because the mean of its divisors is an integer number (62940014046).

Almost surely, 2^125880028091 is an apocalyptic number.

125880028091 is a deficient number, since it is larger than the sum of its proper divisors (1).

125880028091 is an equidigital number, since it uses as much as digits as its factorization.

125880028091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 44.

The spelling of 125880028091 in words is "one hundred twenty-five billion, eight hundred eighty million, twenty-eight thousand, ninety-one".