20131022102 has 16 divisors (see below), whose sum is σ = 30480131520. Its totient is φ = 9971415552.

The previous prime is 20131022071. The next prime is 20131022111. The reversal of 20131022102 is 20122013102.

It is a happy number.

It is a congruent number.

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, 16853 + ... + 201360.

It is an arithmetic number, because the mean of its divisors is an integer number (1905008220).

Almost surely, 2^20131022102 is an apocalyptic number.

20131022102 is a deficient number, since it is larger than the sum of its proper divisors (10349109418).

20131022102 is a wasteful number, since it uses less digits than its factorization.

20131022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218647.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20131022102 its reverse (20122013102), we get a palindrome (40253035204).

The spelling of 20131022102 in words is "twenty billion, one hundred thirty-one million, twenty-two thousand, one hundred two".