20310453930161 has 16 divisors (see below), whose sum is σ = 21487905773568. Its totient is φ = 19168620844800.

The previous prime is 20310453930131. The next prime is 20310453930167. The reversal of 20310453930161 is 16103935401302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20310453930161 - 2⁴² = 15912407419057 is a prime.

It is a super-2 number, since 2×20310453930161² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20310453930167) 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, 24394700 + ... + 25213533.

It is an arithmetic number, because the mean of its divisors is an integer number (1342994110848).

Almost surely, 2^{20310453930161} is an apocalyptic number.

It is an amenable number.

20310453930161 is a deficient number, since it is larger than the sum of its proper divisors (1177451843407).

20310453930161 is a wasteful number, since it uses less digits than its factorization.

20310453930161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49608592.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 20310453930161 in words is "twenty trillion, three hundred ten billion, four hundred fifty-three million, nine hundred thirty thousand, one hundred sixty-one".