103315202021 has 4 divisors (see below), whose sum is σ = 105066307200. Its totient is φ = 101564096844.

The previous prime is 103315201963. The next prime is 103315202033. The reversal of 103315202021 is 120202513301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103315202021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103315201984 and 103315202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103315202041) 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, 875552501 + ... + 875552618.

It is an arithmetic number, because the mean of its divisors is an integer number (26266576800).

Almost surely, 2^103315202021 is an apocalyptic number.

It is an amenable number.

103315202021 is a deficient number, since it is larger than the sum of its proper divisors (1751105179).

103315202021 is an equidigital number, since it uses as much as digits as its factorization.

103315202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751105178.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 103315202021 its reverse (120202513301), we get a palindrome (223517715322).

The spelling of 103315202021 in words is "one hundred three billion, three hundred fifteen million, two hundred two thousand, twenty-one".