210313013102021 has 4 divisors (see below), whose sum is σ = 210402242214732. Its totient is φ = 210223783989312.

The previous prime is 210313013101979. The next prime is 210313013102069. The reversal of 210313013102021 is 120201310313012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123192462624100 + 87120550477921 = 11099210^2 + 9333839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210313013102021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210313013101984 and 210313013102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210313013102221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44614552820 + ... + 44614557533.

It is an arithmetic number, because the mean of its divisors is an integer number (52600560553683).

Almost surely, 2^{210313013102021} is an apocalyptic number.

It is an amenable number.

210313013102021 is a deficient number, since it is larger than the sum of its proper divisors (89229112711).

210313013102021 is an equidigital number, since it uses as much as digits as its factorization.

210313013102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89229112710.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 210313013102021 its reverse (120201310313012), we get a palindrome (330514323415033).

The spelling of 210313013102021 in words is "two hundred ten trillion, three hundred thirteen billion, thirteen million, one hundred two thousand, twenty-one".