20400023101301 has 4 divisors (see below), whose sum is σ = 20416356187500. Its totient is φ = 20383690015104.

The previous prime is 20400023101291. The next prime is 20400023101319. The reversal of 20400023101301 is 10310132000402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12692125885201 + 7707897216100 = 3562601^2 + 2776310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20400023101301 is a prime.

It is a super-2 number, since 2×20400023101301² (a number of 27 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 20400023101301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400023101331) 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, 8166541226 + ... + 8166543723.

It is an arithmetic number, because the mean of its divisors is an integer number (5104089046875).

Almost surely, 2^{20400023101301} is an apocalyptic number.

It is an amenable number.

20400023101301 is a deficient number, since it is larger than the sum of its proper divisors (16333086199).

20400023101301 is a wasteful number, since it uses less digits than its factorization.

20400023101301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16333086198.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20400023101301 its reverse (10310132000402), we get a palindrome (30710155101703).

The spelling of 20400023101301 in words is "twenty trillion, four hundred billion, twenty-three million, one hundred one thousand, three hundred one".