103012001138 has 16 divisors (see below), whose sum is σ = 154669863960. Its totient is φ = 51455408256.

The previous prime is 103012001137. The next prime is 103012001161. The reversal of 103012001138 is 831100210301.

It can be written as a sum of positive squares in 4 ways, for example, as 102959482129 + 52519009 = 320873^2 + 7247^2 .

It is a super-2 number, since 2×103012001138² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103012001137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10915670 + ... + 10925102.

Almost surely, 2^103012001138 is an apocalyptic number.

103012001138 is a deficient number, since it is larger than the sum of its proper divisors (51657862822).

103012001138 is a wasteful number, since it uses less digits than its factorization.

103012001138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14221.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 103012001138 its reverse (831100210301), we get a palindrome (934112211439).

The spelling of 103012001138 in words is "one hundred three billion, twelve million, one thousand, one hundred thirty-eight".