121310101110 has 64 divisors (see below), whose sum is σ = 320756661504. Its totient is φ = 29117328000.

The previous prime is 121310100997. The next prime is 121310101127. The reversal of 121310101110 is 11101013121.

It is a super-2 number, since 2×121310101110² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1786504 + ... + 1853163.

It is an arithmetic number, because the mean of its divisors is an integer number (5011822836).

Almost surely, 2^121310101110 is an apocalyptic number.

121310101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121310101110 is an abundant number, since it is smaller than the sum of its proper divisors (199446560394).

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

121310101110 is a wasteful number, since it uses less digits than its factorization.

121310101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639789.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 121310101110 its reverse (11101013121), we get a palindrome (132411114231).

The spelling of 121310101110 in words is "one hundred twenty-one billion, three hundred ten million, one hundred one thousand, one hundred ten".