121103102131 has 16 divisors (see below), whose sum is σ = 136737849600. Its totient is φ = 106243127200.

The previous prime is 121103102093. The next prime is 121103102137. The reversal of 121103102131 is 131201301121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121103102131 - 2⁹ = 121103101619 is a prime.

It is a super-2 number, since 2×121103102131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121103102137) 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, 535386 + ... + 727216.

It is an arithmetic number, because the mean of its divisors is an integer number (8546115600).

Almost surely, 2^121103102131 is an apocalyptic number.

121103102131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121103102131 is a deficient number, since it is larger than the sum of its proper divisors (15634747469).

121103102131 is a wasteful number, since it uses less digits than its factorization.

121103102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193850.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121103102131 its reverse (131201301121), we get a palindrome (252304403252).

The spelling of 121103102131 in words is "one hundred twenty-one billion, one hundred three million, one hundred two thousand, one hundred thirty-one".