10501054021 has 4 divisors (see below), whose sum is σ = 10563934752. Its totient is φ = 10438173292.

The previous prime is 10501053977. The next prime is 10501054061. The reversal of 10501054021 is 12045010501.

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-10501054021 is a prime.

It is a super-2 number, since 2×10501054021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10501054021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10501054061) 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, 31440115 + ... + 31440448.

It is an arithmetic number, because the mean of its divisors is an integer number (2640983688).

Almost surely, 2^10501054021 is an apocalyptic number.

It is an amenable number.

10501054021 is a deficient number, since it is larger than the sum of its proper divisors (62880731).

10501054021 is an equidigital number, since it uses as much as digits as its factorization.

10501054021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62880730.

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 10501054021 its reverse (12045010501), we get a palindrome (22546064522).

The spelling of 10501054021 in words is "ten billion, five hundred one million, fifty-four thousand, twenty-one".