20023031002 has 8 divisors (see below), whose sum is σ = 32344896276. Its totient is φ = 9241398912.

The previous prime is 20023030997. The next prime is 20023031023. The reversal of 20023031002 is 20013032002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19181973001 + 841058001 = 138499^2 + 29001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

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, 385058263 + ... + 385058314.

Almost surely, 2^20023031002 is an apocalyptic number.

20023031002 is a deficient number, since it is larger than the sum of its proper divisors (12321865274).

20023031002 is a wasteful number, since it uses less digits than its factorization.

20023031002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770116592.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20023031002 its reverse (20013032002), we get a palindrome (40036063004).

The spelling of 20023031002 in words is "twenty billion, twenty-three million, thirty-one thousand, two".