20211131102 has 16 divisors (see below), whose sum is σ = 30984351552. Its totient is φ = 9883328160.

The previous prime is 20211131081. The next prime is 20211131107. The reversal of 20211131102 is 20113111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211131107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51968 + ... + 207660.

It is an arithmetic number, because the mean of its divisors is an integer number (1936521972).

Almost surely, 2^20211131102 is an apocalyptic number.

20211131102 is a deficient number, since it is larger than the sum of its proper divisors (10773220450).

20211131102 is a wasteful number, since it uses less digits than its factorization.

20211131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157123.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20211131102 its reverse (20113111202), we get a palindrome (40324242304).

The spelling of 20211131102 in words is "twenty billion, two hundred eleven million, one hundred thirty-one thousand, one hundred two".