1021054143431 has 8 divisors (see below), whose sum is σ = 1168089459360. Its totient is φ = 874311437088.

The previous prime is 1021054143409. The next prime is 1021054143433. The reversal of 1021054143431 is 1343414501201.

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 1021054143431 - 2³⁰ = 1019980401607 is a prime.

It is a super-2 number, since 2×1021054143431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021054143394 and 1021054143403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021054143433) 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, 73144916 + ... + 73158873.

It is an arithmetic number, because the mean of its divisors is an integer number (146011182420).

Almost surely, 2^{1021054143431} is an apocalyptic number.

1021054143431 is a deficient number, since it is larger than the sum of its proper divisors (147035315929).

1021054143431 is an equidigital number, since it uses as much as digits as its factorization.

1021054143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146304793.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1021054143431 its reverse (1343414501201), we get a palindrome (2364468644632).

The spelling of 1021054143431 in words is "one trillion, twenty-one billion, fifty-four million, one hundred forty-three thousand, four hundred thirty-one".