20125041431 has 4 divisors (see below), whose sum is σ = 21954590664. Its totient is φ = 18295492200.

The previous prime is 20125041413. The next prime is 20125041449. The reversal of 20125041431 is 13414052102.

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

It is an interprime number because it is at equal distance from previous prime (20125041413) and next prime (20125041449).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20125041431 is a prime.

It is a super-2 number, since 2×20125041431² (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 = 20125041397 and 20125041406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125041401) 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, 914774600 + ... + 914774621.

It is an arithmetic number, because the mean of its divisors is an integer number (5488647666).

Almost surely, 2^20125041431 is an apocalyptic number.

20125041431 is a deficient number, since it is larger than the sum of its proper divisors (1829549233).

20125041431 is a wasteful number, since it uses less digits than its factorization.

20125041431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829549232.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 20125041431 its reverse (13414052102), we get a palindrome (33539093533).

The spelling of 20125041431 in words is "twenty billion, one hundred twenty-five million, forty-one thousand, four hundred thirty-one".