121023312151320 has 96 divisors (see below), whose sum is σ = 393333241223520. Its totient is φ = 32272269765120.

The previous prime is 121023312151289. The next prime is 121023312151381. The reversal of 121023312151320 is 23151213320121.

121023312151320 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 2 + 3 + 3 + 121 + 513 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15928260 + ... + 22265580.

It is an arithmetic number, because the mean of its divisors is an integer number (4097221262745).

Almost surely, 2^{121023312151320} is an apocalyptic number.

121023312151320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121023312151320 is an abundant number, since it is smaller than the sum of its proper divisors (272309929072200).

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

121023312151320 is a wasteful number, since it uses less digits than its factorization.

121023312151320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390385 (or 6390378 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 121023312151320 its reverse (23151213320121), we get a palindrome (144174525471441).

The spelling of 121023312151320 in words is "one hundred twenty-one trillion, twenty-three billion, three hundred twelve million, one hundred fifty-one thousand, three hundred twenty".