121320020310 has 16 divisors (see below), whose sum is σ = 291168048816. Its totient is φ = 32352005408.

The previous prime is 121320020309. The next prime is 121320020347. The reversal of 121320020310 is 13020023121.

It is a super-2 number, since 2×121320020310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121320020310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2022000309 + ... + 2022000368.

It is an arithmetic number, because the mean of its divisors is an integer number (18198003051).

Almost surely, 2^121320020310 is an apocalyptic number.

121320020310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121320020310 is an abundant number, since it is smaller than the sum of its proper divisors (169848028506).

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

121320020310 is a wasteful number, since it uses less digits than its factorization.

121320020310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044000687.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121320020310 its reverse (13020023121), we get a palindrome (134340043431).

The spelling of 121320020310 in words is "one hundred twenty-one billion, three hundred twenty million, twenty thousand, three hundred ten".