20123100131102 has 16 divisors (see below), whose sum is σ = 30189259427472. Its totient is φ = 10060013796480.

The previous prime is 20123100131077. The next prime is 20123100131137. The reversal of 20123100131102 is 20113100132102.

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, 581356748 + ... + 581391360.

It is an arithmetic number, because the mean of its divisors is an integer number (1886828714217).

Almost surely, 2^{20123100131102} is an apocalyptic number.

20123100131102 is a deficient number, since it is larger than the sum of its proper divisors (10066159296370).

20123100131102 is a wasteful number, since it uses less digits than its factorization.

20123100131102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70603.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20123100131102 its reverse (20113100132102), we get a palindrome (40236200263204).

The spelling of 20123100131102 in words is "twenty trillion, one hundred twenty-three billion, one hundred million, one hundred thirty-one thousand, one hundred two".