31101122103 has 16 divisors (see below), whose sum is σ = 41649987456. Its totient is φ = 20643236000.

The previous prime is 31101122099. The next prime is 31101122131. The reversal of 31101122103 is 30122110113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31101122103 - 2² = 31101122099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101122303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2314801 + ... + 2328197.

It is an arithmetic number, because the mean of its divisors is an integer number (2603124216).

Almost surely, 2^31101122103 is an apocalyptic number.

31101122103 is a deficient number, since it is larger than the sum of its proper divisors (10548865353).

31101122103 is a wasteful number, since it uses less digits than its factorization.

31101122103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16734.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31101122103 its reverse (30122110113), we get a palindrome (61223232216).

The spelling of 31101122103 in words is "thirty-one billion, one hundred one million, one hundred twenty-two thousand, one hundred three".