121020313113320 has 16 divisors (see below), whose sum is σ = 272295704505060. Its totient is φ = 48408125245312.

The previous prime is 121020313113317. The next prime is 121020313113361. The reversal of 121020313113320 is 23311313020121.

It can be written as a sum of positive squares in 2 ways, for example, as 114833641874116 + 6186671239204 = 10716046^2 + 2487302^2 .

It is a super-2 number, since 2×121020313113320² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512753913877 + ... + 1512753913956.

Almost surely, 2^{121020313113320} is an apocalyptic number.

121020313113320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020313113320 is an abundant number, since it is smaller than the sum of its proper divisors (151275391391740).

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

121020313113320 is a wasteful number, since it uses less digits than its factorization.

121020313113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025507827844 (or 3025507827840 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121020313113320 its reverse (23311313020121), we get a palindrome (144331626133441).

The spelling of 121020313113320 in words is "one hundred twenty-one trillion, twenty billion, three hundred thirteen million, one hundred thirteen thousand, three hundred twenty".