21132143142 has 32 divisors (see below), whose sum is σ = 46178515584. Its totient is φ = 6393676800.

The previous prime is 21132143119. The next prime is 21132143167. The reversal of 21132143142 is 24134123112.

It is a super-3 number, since 3×21132143142³ (a number of 32 digits) contains 333 as substring.

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, 207448 + ... + 292059.

It is an arithmetic number, because the mean of its divisors is an integer number (1443078612).

Almost surely, 2^21132143142 is an apocalyptic number.

21132143142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21132143142 is an abundant number, since it is smaller than the sum of its proper divisors (25046372442).

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

21132143142 is a wasteful number, since it uses less digits than its factorization.

21132143142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500164.

The product of its digits is 1152, while the sum is 24.

Adding to 21132143142 its reverse (24134123112), we get a palindrome (45266266254).

The spelling of 21132143142 in words is "twenty-one billion, one hundred thirty-two million, one hundred forty-three thousand, one hundred forty-two".