20113433142 has 64 divisors (see below), whose sum is σ = 47454004224. Its totient is φ = 5614384640.

The previous prime is 20113433107. The next prime is 20113433257. The reversal of 20113433142 is 24133431102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137973 + ... + 243440.

It is an arithmetic number, because the mean of its divisors is an integer number (741468816).

Almost surely, 2^20113433142 is an apocalyptic number.

20113433142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20113433142 is an abundant number, since it is smaller than the sum of its proper divisors (27340571082).

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

20113433142 is a wasteful number, since it uses less digits than its factorization.

20113433142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381493.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20113433142 its reverse (24133431102), we get a palindrome (44246864244).

The spelling of 20113433142 in words is "twenty billion, one hundred thirteen million, four hundred thirty-three thousand, one hundred forty-two".