21142085323331 has 64 divisors (see below), whose sum is σ = 26125991424000. Its totient is φ = 16754748088320.

The previous prime is 21142085323319. The next prime is 21142085323357. The reversal of 21142085323331 is 13332358024112.

It is not a de Polignac number, because 21142085323331 - 2³⁰ = 21141011581507 is a prime.

It is a super-2 number, since 2×21142085323331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21142085329331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3796385315 + ... + 3796390883.

It is an arithmetic number, because the mean of its divisors is an integer number (408218616000).

Almost surely, 2^{21142085323331} is an apocalyptic number.

21142085323331 is a deficient number, since it is larger than the sum of its proper divisors (4983906100669).

21142085323331 is an equidigital number, since it uses as much as digits as its factorization.

21142085323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557 (or 7523 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 21142085323331 in words is "twenty-one trillion, one hundred forty-two billion, eighty-five million, three hundred twenty-three thousand, three hundred thirty-one".