20423402034112 has 112 divisors (see below), whose sum is σ = 50529767408640. Its totient is φ = 7956895564800.

The previous prime is 20423402034107. The next prime is 20423402034143. The reversal of 20423402034112 is 21143020432402.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199823662 + ... + 199925842.

Almost surely, 2^{20423402034112} is an apocalyptic number.

20423402034112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20423402034112 is an abundant number, since it is smaller than the sum of its proper divisors (30106365374528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423402034112 is a wasteful number, since it uses less digits than its factorization.

20423402034112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142770 (or 142760 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20423402034112 its reverse (21143020432402), we get a palindrome (41566422466514).

The spelling of 20423402034112 in words is "twenty trillion, four hundred twenty-three billion, four hundred two million, thirty-four thousand, one hundred twelve".