21142132411142 has 16 divisors (see below), whose sum is σ = 31756184507520. Its totient is φ = 10556746219968.

The previous prime is 21142132411133. The next prime is 21142132411157. The reversal of 21142132411142 is 24111423124112.

It is a happy number.

It is a super-2 number, since 2×21142132411142² (a number of 27 digits) contains 22 as substring.

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, 2735618 + ... + 7054634.

It is an arithmetic number, because the mean of its divisors is an integer number (1984761531720).

Almost surely, 2^{21142132411142} is an apocalyptic number.

21142132411142 is a deficient number, since it is larger than the sum of its proper divisors (10614052096378).

21142132411142 is a wasteful number, since it uses less digits than its factorization.

21142132411142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322335.

The product of its digits is 3072, while the sum is 29.

Adding to 21142132411142 its reverse (24111423124112), we get a palindrome (45253555535254).

The spelling of 21142132411142 in words is "twenty-one trillion, one hundred forty-two billion, one hundred thirty-two million, four hundred eleven thousand, one hundred forty-two".