1010121110431 has 4 divisors (see below), whose sum is σ = 1010127019032. Its totient is φ = 1010115201832.

The previous prime is 1010121110407. The next prime is 1010121110443. The reversal of 1010121110431 is 1340111210101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010121110431 - 2¹¹ = 1010121108383 is a prime.

It is a super-2 number, since 2×1010121110431² (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 (1010121110491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2689981 + ... + 3042406.

It is an arithmetic number, because the mean of its divisors is an integer number (252531754758).

Almost surely, 2^{1010121110431} is an apocalyptic number.

1010121110431 is a deficient number, since it is larger than the sum of its proper divisors (5908601).

1010121110431 is an equidigital number, since it uses as much as digits as its factorization.

1010121110431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908600.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1010121110431 its reverse (1340111210101), we get a palindrome (2350232320532).

The spelling of 1010121110431 in words is "one trillion, ten billion, one hundred twenty-one million, one hundred ten thousand, four hundred thirty-one".