2100020311313 has 8 divisors (see below), whose sum is σ = 2151262969800. Its totient is φ = 2048778731520.

The previous prime is 2100020311309. The next prime is 2100020311391. The reversal of 2100020311313 is 3131130200012.

It can be written as a sum of positive squares in 4 ways, for example, as 396935280784 + 1703085030529 = 630028^2 + 1305023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100020311313 - 2² = 2100020311309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100020311291 and 2100020311300.

It is not an unprimeable number, because it can be changed into a prime (2100020317313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4836881 + ... + 5253137.

It is an arithmetic number, because the mean of its divisors is an integer number (268907871225).

Almost surely, 2^{2100020311313} is an apocalyptic number.

It is an amenable number.

2100020311313 is a deficient number, since it is larger than the sum of its proper divisors (51242658487).

2100020311313 is a wasteful number, since it uses less digits than its factorization.

2100020311313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539347.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2100020311313 its reverse (3131130200012), we get a palindrome (5231150511325).

The spelling of 2100020311313 in words is "two trillion, one hundred billion, twenty million, three hundred eleven thousand, three hundred thirteen".