121313123201020 has 24 divisors (see below), whose sum is σ = 254956122734544. Its totient is φ = 48487427563776.

The previous prime is 121313123200987. The next prime is 121313123201077. The reversal of 121313123201020 is 20102321313121.

It is a super-2 number, since 2×121313123201020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121313123200982 and 121313123201000.

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, 2363830989 + ... + 2363882308.

It is an arithmetic number, because the mean of its divisors is an integer number (10623171780606).

Almost surely, 2^{121313123201020} is an apocalyptic number.

121313123201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121313123201020 is an abundant number, since it is smaller than the sum of its proper divisors (133642999533524).

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

121313123201020 is a wasteful number, since it uses less digits than its factorization.

121313123201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727714589 (or 4727714587 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121313123201020 its reverse (20102321313121), we get a palindrome (141415444514141).

The spelling of 121313123201020 in words is "one hundred twenty-one trillion, three hundred thirteen billion, one hundred twenty-three million, two hundred one thousand, twenty".