121312626 has 32 divisors (see below), whose sum is σ = 261912960. Its totient is φ = 37344384.

The previous prime is 121312613. The next prime is 121312627. The reversal of 121312626 is 626213121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121312596 and 121312605.

It is not an unprimeable number, because it can be changed into a prime (121312627) 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, 11155 + ... + 19158.

It is an arithmetic number, because the mean of its divisors is an integer number (8184780).

Almost surely, 2^121312626 is an apocalyptic number.

121312626 is an abundant number, since it is smaller than the sum of its proper divisors (140600334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121312626 is a wasteful number, since it uses less digits than its factorization.

121312626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30370.

The product of its digits is 864, while the sum is 24.

The square root of 121312626 is about 11014.2011058451. The cubic root of 121312626 is about 495.0343492131.

Adding to 121312626 its reverse (626213121), we get a palindrome (747525747).

The spelling of 121312626 in words is "one hundred twenty-one million, three hundred twelve thousand, six hundred twenty-six".