20030122235431 has 32 divisors (see below), whose sum is σ = 25033400759808. Its totient is φ = 15569908439040.

The previous prime is 20030122235419. The next prime is 20030122235437. The reversal of 20030122235431 is 13453222103002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20030122235431 - 2⁷ = 20030122235303 is a prime.

It is a super-2 number, since 2×20030122235431² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20030122235431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030122235437) 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 31 ways as a sum of consecutive naturals, for example, 306271071 + ... + 306336463.

It is an arithmetic number, because the mean of its divisors is an integer number (782293773744).

Almost surely, 2^{20030122235431} is an apocalyptic number.

20030122235431 is a deficient number, since it is larger than the sum of its proper divisors (5003278524377).

20030122235431 is a wasteful number, since it uses less digits than its factorization.

20030122235431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75031.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 20030122235431 its reverse (13453222103002), we get a palindrome (33483344338433).

The spelling of 20030122235431 in words is "twenty trillion, thirty billion, one hundred twenty-two million, two hundred thirty-five thousand, four hundred thirty-one".