126523031115 has 32 divisors (see below), whose sum is σ = 219673149696. Its totient is φ = 61812766080.

The previous prime is 126523031113. The next prime is 126523031123. The reversal of 126523031115 is 511130325621.

It is not a de Polignac number, because 126523031115 - 2¹ = 126523031113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126523031113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2450929 + ... + 2502018.

It is an arithmetic number, because the mean of its divisors is an integer number (6864785928).

Almost surely, 2^126523031115 is an apocalyptic number.

126523031115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126523031115 is a deficient number, since it is larger than the sum of its proper divisors (93150118581).

126523031115 is a wasteful number, since it uses less digits than its factorization.

126523031115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4953099.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 126523031115 its reverse (511130325621), we get a palindrome (637653356736).

The spelling of 126523031115 in words is "one hundred twenty-six billion, five hundred twenty-three million, thirty-one thousand, one hundred fifteen".