20301244031 has 4 divisors (see below), whose sum is σ = 20449428432. Its totient is φ = 20153059632.

The previous prime is 20301244021. The next prime is 20301244037. The reversal of 20301244031 is 13044210302.

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

It is a cyclic number.

It is not a de Polignac number, because 20301244031 - 2¹⁴ = 20301227647 is a prime.

It is a super-2 number, since 2×20301244031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301243994 and 20301244012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301244037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74091995 + ... + 74092268.

It is an arithmetic number, because the mean of its divisors is an integer number (5112357108).

Almost surely, 2^20301244031 is an apocalyptic number.

20301244031 is a deficient number, since it is larger than the sum of its proper divisors (148184401).

20301244031 is a wasteful number, since it uses less digits than its factorization.

20301244031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148184400.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20301244031 its reverse (13044210302), we get a palindrome (33345454333).

The spelling of 20301244031 in words is "twenty billion, three hundred one million, two hundred forty-four thousand, thirty-one".