902431002020 has 48 divisors (see below), whose sum is σ = 1921621605120. Its totient is φ = 355943748864.

The previous prime is 902431002019. The next prime is 902431002023. The reversal of 902431002020 is 20200134209.

It is not an unprimeable number, because it can be changed into a prime (902431002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37454 + ... + 1343973.

It is an arithmetic number, because the mean of its divisors is an integer number (40033783440).

Almost surely, 2^902431002020 is an apocalyptic number.

It is an amenable number.

902431002020 is an abundant number, since it is smaller than the sum of its proper divisors (1019190603100).

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

902431002020 is a wasteful number, since it uses less digits than its factorization.

902431002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381892 (or 1381890 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 902431002020 its reverse (20200134209), we get a palindrome (922631136229).

The spelling of 902431002020 in words is "nine hundred two billion, four hundred thirty-one million, two thousand, twenty".