121121013320 has 16 divisors (see below), whose sum is σ = 272522280060. Its totient is φ = 48448405312.

The previous prime is 121121013317. The next prime is 121121013341. The reversal of 121121013320 is 23310121121.

It can be written as a sum of positive squares in 2 ways, for example, as 120910589284 + 210424036 = 347722^2 + 14506^2 .

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, 1514012627 + ... + 1514012706.

Almost surely, 2^121121013320 is an apocalyptic number.

121121013320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121121013320 is an abundant number, since it is smaller than the sum of its proper divisors (151401266740).

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

121121013320 is a wasteful number, since it uses less digits than its factorization.

121121013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028025344 (or 3028025340 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121121013320 its reverse (23310121121), we get a palindrome (144431134441).

The spelling of 121121013320 in words is "one hundred twenty-one billion, one hundred twenty-one million, thirteen thousand, three hundred twenty".