6431123020 has 24 divisors (see below), whose sum is σ = 15434695584. Its totient is φ = 2204956416.

The previous prime is 6431123003. The next prime is 6431123029. The reversal of 6431123020 is 203211346.

It is a junction number, because it is equal to n+sod(n) for n = 6431122982 and 6431123000.

It is not an unprimeable number, because it can be changed into a prime (6431123029) 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, 22968157 + ... + 22968436.

It is an arithmetic number, because the mean of its divisors is an integer number (643112316).

Almost surely, 2^6431123020 is an apocalyptic number.

It is an amenable number.

6431123020 is an abundant number, since it is smaller than the sum of its proper divisors (9003572564).

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

6431123020 is a wasteful number, since it uses less digits than its factorization.

6431123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45936609 (or 45936607 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6431123020 is about 80194.2829633135. The cubic root of 6431123020 is about 1859.6402568611.

Adding to 6431123020 its reverse (203211346), we get a palindrome (6634334366).

The spelling of 6431123020 in words is "six billion, four hundred thirty-one million, one hundred twenty-three thousand, twenty".