20131102 has 8 divisors (see below), whose sum is σ = 30332736. Its totient is φ = 10020192.

The previous prime is 20131093. The next prime is 20131103. The reversal of 20131102 is 20113102.

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

It is a super-2 number, since 2×20131102² = 810522535468808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22123 + ... + 23014.

It is an arithmetic number, because the mean of its divisors is an integer number (3791592).

Almost surely, 2^20131102 is an apocalyptic number.

20131102 is a deficient number, since it is larger than the sum of its proper divisors (10201634).

20131102 is a wasteful number, since it uses less digits than its factorization.

20131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45362.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 20131102 is about 4486.7696620174. The cubic root of 20131102 is about 272.0335796922.

Adding to 20131102 its reverse (20113102), we get a palindrome (40244204).

The spelling of 20131102 in words is "twenty million, one hundred thirty-one thousand, one hundred two".