20030042131 has 16 divisors (see below), whose sum is σ = 22814726400. Its totient is φ = 17406940320.

The previous prime is 20030042113. The next prime is 20030042173. The reversal of 20030042131 is 13124003002.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20030042131 is a prime.

It is a super-2 number, since 2×20030042131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20030042111) 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, 412945 + ... + 458893.

It is an arithmetic number, because the mean of its divisors is an integer number (1425920400).

Almost surely, 2^20030042131 is an apocalyptic number.

20030042131 is a deficient number, since it is larger than the sum of its proper divisors (2784684269).

20030042131 is a wasteful number, since it uses less digits than its factorization.

20030042131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47706.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20030042131 its reverse (13124003002), we get a palindrome (33154045133).

The spelling of 20030042131 in words is "twenty billion, thirty million, forty-two thousand, one hundred thirty-one".