20112113142 has 48 divisors (see below), whose sum is σ = 47565964368. Its totient is φ = 6090959040.

The previous prime is 20112113117. The next prime is 20112113159. The reversal of 20112113142 is 24131121102.

It is a super-2 number, since 2×20112113142² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313828 + ... + 372440.

It is an arithmetic number, because the mean of its divisors is an integer number (990957591).

Almost surely, 2^20112113142 is an apocalyptic number.

20112113142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20112113142 is an abundant number, since it is smaller than the sum of its proper divisors (27453851226).

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

20112113142 is a wasteful number, since it uses less digits than its factorization.

20112113142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60365 (or 60362 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20112113142 its reverse (24131121102), we get a palindrome (44243234244).

The spelling of 20112113142 in words is "twenty billion, one hundred twelve million, one hundred thirteen thousand, one hundred forty-two".