2531423020 has 24 divisors (see below), whose sum is σ = 6075415584. Its totient is φ = 867916416.

The previous prime is 2531422981. The next prime is 2531423023. The reversal of 2531423020 is 203241352.

2531423020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2531422982 and 2531423000.

It is not an unprimeable number, because it can be changed into a prime (2531423023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9040657 + ... + 9040936.

It is an arithmetic number, because the mean of its divisors is an integer number (253142316).

Almost surely, 2^2531423020 is an apocalyptic number.

2531423020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531423020 is an abundant number, since it is smaller than the sum of its proper divisors (3543992564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531423020 is a wasteful number, since it uses less digits than its factorization.

2531423020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081609 (or 18081607 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2531423020 is about 50313.2489509473. The cubic root of 2531423020 is about 1362.8714955912.

Adding to 2531423020 its reverse (203241352), we get a palindrome (2734664372).

The spelling of 2531423020 in words is "two billion, five hundred thirty-one million, four hundred twenty-three thousand, twenty".