121310212323110 has 32 divisors (see below), whose sum is σ = 221018686560000. Its totient is φ = 47933062160608.

The previous prime is 121310212323089. The next prime is 121310212323199. The reversal of 121310212323110 is 11323212013121.

It is a happy number.

It is a super-2 number, since 2×121310212323110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3520922 + ... + 15969261.

It is an arithmetic number, because the mean of its divisors is an integer number (6906833955000).

Almost surely, 2^{121310212323110} is an apocalyptic number.

121310212323110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121310212323110 is a deficient number, since it is larger than the sum of its proper divisors (99708474236890).

121310212323110 is a wasteful number, since it uses less digits than its factorization.

121310212323110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19497772.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121310212323110 its reverse (11323212013121), we get a palindrome (132633424336231).

The spelling of 121310212323110 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred twelve million, three hundred twenty-three thousand, one hundred ten".