121026234251 has 4 divisors (see below), whose sum is σ = 130335944592. Its totient is φ = 111716523912.

The previous prime is 121026234223. The next prime is 121026234317. The reversal of 121026234251 is 152432620121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121026234251 - 2²² = 121022039947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121026234221) 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, 4654855151 + ... + 4654855176.

It is an arithmetic number, because the mean of its divisors is an integer number (32583986148).

Almost surely, 2^121026234251 is an apocalyptic number.

121026234251 is a deficient number, since it is larger than the sum of its proper divisors (9309710341).

121026234251 is an equidigital number, since it uses as much as digits as its factorization.

121026234251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309710340.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 121026234251 its reverse (152432620121), we get a palindrome (273458854372).

The spelling of 121026234251 in words is "one hundred twenty-one billion, twenty-six million, two hundred thirty-four thousand, two hundred fifty-one".