20031422131 has 16 divisors (see below), whose sum is σ = 23927491584. Its totient is φ = 16396405344.

The previous prime is 20031422129. The next prime is 20031422183. The reversal of 20031422131 is 13122413002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20031422131 - 2¹ = 20031422129 is a prime.

It is a super-2 number, since 2×20031422131² (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 = 20031422099 and 20031422108.

It is not an unprimeable number, because it can be changed into a prime (20031423131) 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, 2791 + ... + 200176.

It is an arithmetic number, because the mean of its divisors is an integer number (1495468224).

Almost surely, 2^20031422131 is an apocalyptic number.

20031422131 is a deficient number, since it is larger than the sum of its proper divisors (3896069453).

20031422131 is a wasteful number, since it uses less digits than its factorization.

20031422131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203610.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20031422131 its reverse (13122413002), we get a palindrome (33153835133).

The spelling of 20031422131 in words is "twenty billion, thirty-one million, four hundred twenty-two thousand, one hundred thirty-one".