20110013438 has 16 divisors (see below), whose sum is σ = 30259547136. Its totient is φ = 10023544440.

The previous prime is 20110013437. The next prime is 20110013479. The reversal of 20110013438 is 83431001102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110013437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905495 + ... + 927437.

It is an arithmetic number, because the mean of its divisors is an integer number (1891221696).

Almost surely, 2^20110013438 is an apocalyptic number.

20110013438 is a deficient number, since it is larger than the sum of its proper divisors (10149533698).

20110013438 is a wasteful number, since it uses less digits than its factorization.

20110013438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23359.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 20110013438 in words is "twenty billion, one hundred ten million, thirteen thousand, four hundred thirty-eight".