20123031002 has 8 divisors (see below), whose sum is σ = 31960108116. Its totient is φ = 9469661632.

The previous prime is 20123030987. The next prime is 20123031029. The reversal of 20123031002 is 20013032102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20121706201 + 1324801 = 141851^2 + 1151^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295926893 + ... + 295926960.

Almost surely, 2^20123031002 is an apocalyptic number.

20123031002 is a deficient number, since it is larger than the sum of its proper divisors (11837077114).

20123031002 is a wasteful number, since it uses less digits than its factorization.

20123031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591853872.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20123031002 its reverse (20013032102), we get a palindrome (40136063104).

It can be divided in two parts, 201230 and 31002, that added together give a palindrome (232232).

The spelling of 20123031002 in words is "twenty billion, one hundred twenty-three million, thirty-one thousand, two".