21250262512342 has 8 divisors (see below), whose sum is σ = 31875483459600. Its totient is φ = 10625101359144.

The previous prime is 21250262512337. The next prime is 21250262512373. The reversal of 21250262512342 is 24321526205212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14049217 + ... + 15488092.

It is an arithmetic number, because the mean of its divisors is an integer number (3984435432450).

Almost surely, 2^{21250262512342} is an apocalyptic number.

21250262512342 is a deficient number, since it is larger than the sum of its proper divisors (10625220947258).

21250262512342 is a wasteful number, since it uses less digits than its factorization.

21250262512342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29897030.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 21250262512342 its reverse (24321526205212), we get a palindrome (45571788717554).

The spelling of 21250262512342 in words is "twenty-one trillion, two hundred fifty billion, two hundred sixty-two million, five hundred twelve thousand, three hundred forty-two".