121031202130121 has 4 divisors (see below), whose sum is σ = 121573942947072. Its totient is φ = 120488461313172.

The previous prime is 121031202130103. The next prime is 121031202130151.

121031202130121 is nontrivially palindromic in base 10.

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-121031202130121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121031202130093 and 121031202130102.

It is not an unprimeable number, because it can be changed into a prime (121031202130151) 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, 271370408141 + ... + 271370408586.

It is an arithmetic number, because the mean of its divisors is an integer number (30393485736768).

Almost surely, 2^{121031202130121} is an apocalyptic number.

It is an amenable number.

121031202130121 is a deficient number, since it is larger than the sum of its proper divisors (542740816951).

121031202130121 is an equidigital number, since it uses as much as digits as its factorization.

121031202130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542740816950.

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 12103120 and 2130121, that added together give a palindrome (14233241).

The spelling of 121031202130121 in words is "one hundred twenty-one trillion, thirty-one billion, two hundred two million, one hundred thirty thousand, one hundred twenty-one".