20103312002 has 4 divisors (see below), whose sum is σ = 30154968006. Its totient is φ = 10051656000.

The previous prime is 20103312001. The next prime is 20103312041. The reversal of 20103312002 is 20021330102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15996937441 + 4106374561 = 126479^2 + 64081^2 .

It is not an unprimeable number, because it can be changed into a prime (20103312001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025827999 + ... + 5025828002.

Almost surely, 2^20103312002 is an apocalyptic number.

20103312002 is a deficient number, since it is larger than the sum of its proper divisors (10051656004).

20103312002 is a wasteful number, since it uses less digits than its factorization.

20103312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051656003.

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

Adding to 20103312002 its reverse (20021330102), we get a palindrome (40124642104).

The spelling of 20103312002 in words is "twenty billion, one hundred three million, three hundred twelve thousand, two".