21142033342 has 16 divisors (see below), whose sum is σ = 32493871872. Its totient is φ = 10311399000.

The previous prime is 21142033333. The next prime is 21142033351. The reversal of 21142033342 is 24333024112.

It is an interprime number because it is at equal distance from previous prime (21142033333) and next prime (21142033351).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99088 + ... + 228259.

It is an arithmetic number, because the mean of its divisors is an integer number (2030866992).

Almost surely, 2^21142033342 is an apocalyptic number.

21142033342 is a deficient number, since it is larger than the sum of its proper divisors (11351838530).

21142033342 is a wasteful number, since it uses less digits than its factorization.

21142033342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328143.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21142033342 its reverse (24333024112), we get a palindrome (45475057454).

The spelling of 21142033342 in words is "twenty-one billion, one hundred forty-two million, thirty-three thousand, three hundred forty-two".