20131101002 has 16 divisors (see below), whose sum is σ = 30337713000. Its totient is φ = 10018557120.

The previous prime is 20131100999. The next prime is 20131101019. The reversal of 20131101002 is 20010113102.

It can be written as a sum of positive squares in 4 ways, for example, as 17814507841 + 2316593161 = 133471^2 + 48131^2 .

It is a super-2 number, since 2×20131101002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2735624 + ... + 2742972.

Almost surely, 2^20131101002 is an apocalyptic number.

20131101002 is a deficient number, since it is larger than the sum of its proper divisors (10206611998).

20131101002 is a wasteful number, since it uses less digits than its factorization.

20131101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13561.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20131101002 its reverse (20010113102), we get a palindrome (40141214104).

The spelling of 20131101002 in words is "twenty billion, one hundred thirty-one million, one hundred one thousand, two".