20110143042 has 48 divisors (see below), whose sum is σ = 47542517568. Its totient is φ = 6092771040.

The previous prime is 20110143017. The next prime is 20110143043. The reversal of 20110143042 is 24034101102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20110143043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1868308 + ... + 1879040.

It is an arithmetic number, because the mean of its divisors is an integer number (990469116).

Almost surely, 2^20110143042 is an apocalyptic number.

20110143042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20110143042 is an abundant number, since it is smaller than the sum of its proper divisors (27432374526).

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

20110143042 is a wasteful number, since it uses less digits than its factorization.

20110143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20215 (or 20212 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20110143042 its reverse (24034101102), we get a palindrome (44144244144).

The spelling of 20110143042 in words is "twenty billion, one hundred ten million, one hundred forty-three thousand, forty-two".