21142412037 has 12 divisors (see below), whose sum is σ = 30552082080. Its totient is φ = 14088921768.

The previous prime is 21142412029. The next prime is 21142412041. The reversal of 21142412037 is 73021424112.

21142412037 is a `hidden beast` number, since 211 + 4 + 2 + 412 + 0 + 37 = 666.

It is not a de Polignac number, because 21142412037 - 2³ = 21142412029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21142412037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142412737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479337 + ... + 521582.

It is an arithmetic number, because the mean of its divisors is an integer number (2546006840).

Almost surely, 2^21142412037 is an apocalyptic number.

It is an amenable number.

21142412037 is a deficient number, since it is larger than the sum of its proper divisors (9409670043).

21142412037 is a wasteful number, since it uses less digits than its factorization.

21142412037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003272 (or 1003269 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 21142412037 its reverse (73021424112), we get a palindrome (94163836149).

The spelling of 21142412037 in words is "twenty-one billion, one hundred forty-two million, four hundred twelve thousand, thirty-seven".