20373721137001 has 16 divisors (see below), whose sum is σ = 21332919407616. Its totient is φ = 19433547000000.

The previous prime is 20373721136963. The next prime is 20373721137023. The reversal of 20373721137001 is 10073112737302.

It is a cyclic number.

It is not a de Polignac number, because 20373721137001 - 2¹⁷ = 20373721005929 is a prime.

It is a super-2 number, since 2×20373721137001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20373721132001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6895351 + ... + 9396451.

It is an arithmetic number, because the mean of its divisors is an integer number (1333307462976).

Almost surely, 2^{20373721137001} is an apocalyptic number.

It is an amenable number.

20373721137001 is a deficient number, since it is larger than the sum of its proper divisors (959198270615).

20373721137001 is a wasteful number, since it uses less digits than its factorization.

20373721137001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504904.

The product of its (nonzero) digits is 37044, while the sum is 37.

The spelling of 20373721137001 in words is "twenty trillion, three hundred seventy-three billion, seven hundred twenty-one million, one hundred thirty-seven thousand, one".