121103123131 has 8 divisors (see below), whose sum is σ = 122288847200. Its totient is φ = 119917590912.

The previous prime is 121103123087. The next prime is 121103123147. The reversal of 121103123131 is 131321301121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121103123131 - 2⁷ = 121103123003 is a prime.

It is a super-2 number, since 2×121103123131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121103123099 and 121103123108.

It is not an unprimeable number, because it can be changed into a prime (121103103131) 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, 1447561 + ... + 1528933.

It is an arithmetic number, because the mean of its divisors is an integer number (15286105900).

Almost surely, 2^121103123131 is an apocalyptic number.

121103123131 is a deficient number, since it is larger than the sum of its proper divisors (1185724069).

121103123131 is a wasteful number, since it uses less digits than its factorization.

121103123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95925.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121103123131 its reverse (131321301121), we get a palindrome (252424424252).

The spelling of 121103123131 in words is "one hundred twenty-one billion, one hundred three million, one hundred twenty-three thousand, one hundred thirty-one".