125111515430 has 16 divisors (see below), whose sum is σ = 245673521424. Its totient is φ = 45495096480.

The previous prime is 125111515429. The next prime is 125111515493. The reversal of 125111515430 is 34515111521.

It is a happy number.

It is a super-2 number, since 2×125111515430² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125111515393 and 125111515402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568688597 + ... + 568688816.

It is an arithmetic number, because the mean of its divisors is an integer number (15354595089).

Almost surely, 2^125111515430 is an apocalyptic number.

125111515430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125111515430 is a deficient number, since it is larger than the sum of its proper divisors (120562005994).

125111515430 is a wasteful number, since it uses less digits than its factorization.

125111515430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137377431.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 125111515430 its reverse (34515111521), we get a palindrome (159626626951).

The spelling of 125111515430 in words is "one hundred twenty-five billion, one hundred eleven million, five hundred fifteen thousand, four hundred thirty".