103312011231 has 24 divisors (see below), whose sum is σ = 175317354576. Its totient is φ = 57796928640.

The previous prime is 103312011223. The next prime is 103312011307. The reversal of 103312011231 is 132110213301.

103312011231 is a `hidden beast` number, since 10 + 331 + 201 + 123 + 1 = 666.

It is not a de Polignac number, because 103312011231 - 2³ = 103312011223 is a prime.

It is a super-2 number, since 2×103312011231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312011221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40135470 + ... + 40138043.

It is an arithmetic number, because the mean of its divisors is an integer number (7304889774).

Almost surely, 2^103312011231 is an apocalyptic number.

103312011231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103312011231 is a deficient number, since it is larger than the sum of its proper divisors (72005343345).

103312011231 is a wasteful number, since it uses less digits than its factorization.

103312011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80273543 (or 80273540 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 103312011231 its reverse (132110213301), we get a palindrome (235422224532).

The spelling of 103312011231 in words is "one hundred three billion, three hundred twelve million, eleven thousand, two hundred thirty-one".