21302140838701 has 4 divisors (see below), whose sum is σ = 21383137572192. Its totient is φ = 21221144105212.

The previous prime is 21302140838683. The next prime is 21302140838707. The reversal of 21302140838701 is 10783804120312.

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 not a de Polignac number, because 21302140838701 - 2³⁵ = 21267781100333 is a prime.

It is a super-3 number, since 3×21302140838701³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302140838707) 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, 40498366351 + ... + 40498366876.

It is an arithmetic number, because the mean of its divisors is an integer number (5345784393048).

Almost surely, 2^{21302140838701} is an apocalyptic number.

It is an amenable number.

21302140838701 is a deficient number, since it is larger than the sum of its proper divisors (80996733491).

21302140838701 is an equidigital number, since it uses as much as digits as its factorization.

21302140838701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80996733490.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 21302140838701 in words is "twenty-one trillion, three hundred two billion, one hundred forty million, eight hundred thirty-eight thousand, seven hundred one".