103031201232121 has 4 divisors (see below), whose sum is σ = 103031324442000. Its totient is φ = 103031078022244.

The previous prime is 103031201232107. The next prime is 103031201232139. The reversal of 103031201232121 is 121232102130301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103031201232121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103031201232092 and 103031201232101.

It is not an unprimeable number, because it can be changed into a prime (103031201232521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60341971 + ... + 62025928.

It is an arithmetic number, because the mean of its divisors is an integer number (25757831110500).

Almost surely, 2^{103031201232121} is an apocalyptic number.

It is an amenable number.

103031201232121 is a deficient number, since it is larger than the sum of its proper divisors (123209879).

103031201232121 is an equidigital number, since it uses as much as digits as its factorization.

103031201232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123209878.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 103031201232121 its reverse (121232102130301), we get a palindrome (224263303362422).

The spelling of 103031201232121 in words is "one hundred three trillion, thirty-one billion, two hundred one million, two hundred thirty-two thousand, one hundred twenty-one".