1021202110431 has 6 divisors (see below), whose sum is σ = 1475069715080. Its totient is φ = 680801406948.

The previous prime is 1021202110421. The next prime is 1021202110471. The reversal of 1021202110431 is 1340112021201.

1021202110431 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 20 + 211 + 0 + 431 = 666.

It is not a de Polignac number, because 1021202110431 - 2¹¹ = 1021202108383 is a prime.

It is a super-2 number, since 2×1021202110431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021202110421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56733450571 + ... + 56733450588.

Almost surely, 2^{1021202110431} is an apocalyptic number.

1021202110431 is a deficient number, since it is larger than the sum of its proper divisors (453867604649).

1021202110431 is a wasteful number, since it uses less digits than its factorization.

1021202110431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113466901165 (or 113466901162 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1021202110431 its reverse (1340112021201), we get a palindrome (2361314131632).

The spelling of 1021202110431 in words is "one trillion, twenty-one billion, two hundred two million, one hundred ten thousand, four hundred thirty-one".