125005012331 has 4 divisors (see below), whose sum is σ = 125029963464. Its totient is φ = 124980061200.

The previous prime is 125005012313. The next prime is 125005012337. The reversal of 125005012331 is 133210500521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125005012331 - 2⁶ = 125005012267 is a prime.

It is a super-2 number, since 2×125005012331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125005012297 and 125005012306.

It is not an unprimeable number, because it can be changed into a prime (125005012337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12468050 + ... + 12478071.

It is an arithmetic number, because the mean of its divisors is an integer number (31257490866).

Almost surely, 2^125005012331 is an apocalyptic number.

125005012331 is a deficient number, since it is larger than the sum of its proper divisors (24951133).

125005012331 is an equidigital number, since it uses as much as digits as its factorization.

125005012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24951132.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 125005012331 its reverse (133210500521), we get a palindrome (258215512852).

The spelling of 125005012331 in words is "one hundred twenty-five billion, five million, twelve thousand, three hundred thirty-one".