21142101298 has 8 divisors (see below), whose sum is σ = 32147578908. Its totient is φ = 10426241664.

The previous prime is 21142101269. The next prime is 21142101307. The reversal of 21142101298 is 89210124112.

It can be written as a sum of positive squares in 2 ways, for example, as 20640206889 + 501894409 = 143667^2 + 22403^2 .

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

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, 72404311 + ... + 72404602.

Almost surely, 2^21142101298 is an apocalyptic number.

21142101298 is a deficient number, since it is larger than the sum of its proper divisors (11005477610).

21142101298 is a wasteful number, since it uses less digits than its factorization.

21142101298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144808988.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 21142101298 in words is "twenty-one billion, one hundred forty-two million, one hundred one thousand, two hundred ninety-eight".