1313020212021 has 64 divisors (see below), whose sum is σ = 2226991513600. Its totient is φ = 748986264000.

The previous prime is 1313020212017. The next prime is 1313020212113. The reversal of 1313020212021 is 1202120203131.

1313020212021 is a `hidden beast` number, since 131 + 302 + 0 + 212 + 0 + 21 = 666.

It is not a de Polignac number, because 1313020212021 - 2² = 1313020212017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313020211985 and 1313020212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313020212821) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394180326 + ... + 394183656.

It is an arithmetic number, because the mean of its divisors is an integer number (34796742400).

Almost surely, 2^{1313020212021} is an apocalyptic number.

It is an amenable number.

1313020212021 is a deficient number, since it is larger than the sum of its proper divisors (913971301579).

1313020212021 is a wasteful number, since it uses less digits than its factorization.

1313020212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367 (or 6361 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1313020212021 its reverse (1202120203131), we get a palindrome (2515140415152).

The spelling of 1313020212021 in words is "one trillion, three hundred thirteen billion, twenty million, two hundred twelve thousand, twenty-one".