20123133113212 has 12 divisors (see below), whose sum is σ = 35219039777656. Its totient is φ = 10060550319600.

The previous prime is 20123133113201. The next prime is 20123133113227. The reversal of 20123133113212 is 21231133132102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254014698 + ... + 254093905.

Almost surely, 2^{20123133113212} is an apocalyptic number.

It is an amenable number.

20123133113212 is a deficient number, since it is larger than the sum of its proper divisors (15095906664444).

20123133113212 is a wasteful number, since it uses less digits than its factorization.

20123133113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508118508 (or 508118506 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20123133113212 its reverse (21231133132102), we get a palindrome (41354266245314).

The spelling of 20123133113212 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty-three million, one hundred thirteen thousand, two hundred twelve".