100021203013 has 4 divisors (see below), whose sum is σ = 100066607488. Its totient is φ = 99975798540.

The previous prime is 100021203001. The next prime is 100021203047. The reversal of 100021203013 is 310302120001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310302120001 = 2711 ⋅114460391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021203013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021202984 and 100021203002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021203053) 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, 22698933 + ... + 22703338.

It is an arithmetic number, because the mean of its divisors is an integer number (25016651872).

Almost surely, 2^100021203013 is an apocalyptic number.

It is an amenable number.

100021203013 is a deficient number, since it is larger than the sum of its proper divisors (45404475).

100021203013 is an equidigital number, since it uses as much as digits as its factorization.

100021203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45404474.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100021203013 its reverse (310302120001), we get a palindrome (410323323014).

The spelling of 100021203013 in words is "one hundred billion, twenty-one million, two hundred three thousand, thirteen".