21142010031143 has 8 divisors (see below), whose sum is σ = 22082877763200. Its totient is φ = 20202946457848.

The previous prime is 21142010031059. The next prime is 21142010031157. The reversal of 21142010031143 is 34113001024112.

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

It is a cyclic number.

It is not a de Polignac number, because 21142010031143 - 2³² = 21137715063847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142010034143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451015733 + ... + 451062606.

It is an arithmetic number, because the mean of its divisors is an integer number (2760359720400).

Almost surely, 2^{21142010031143} is an apocalyptic number.

21142010031143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21142010031143 is a deficient number, since it is larger than the sum of its proper divisors (940867732057).

21142010031143 is a wasteful number, since it uses less digits than its factorization.

21142010031143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902079381.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21142010031143 its reverse (34113001024112), we get a palindrome (55255011055255).

The spelling of 21142010031143 in words is "twenty-one trillion, one hundred forty-two billion, ten million, thirty-one thousand, one hundred forty-three".