10121223431 has 4 divisors (see below), whose sum is σ = 11041334664. Its totient is φ = 9201112200.

The previous prime is 10121223421. The next prime is 10121223461. The reversal of 10121223431 is 13432212101.

10121223431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10121223431 - 2⁶ = 10121223367 is a prime.

It is a super-2 number, since 2×10121223431² (a number of 21 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 (10121223421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460055600 + ... + 460055621.

It is an arithmetic number, because the mean of its divisors is an integer number (2760333666).

Almost surely, 2^10121223431 is an apocalyptic number.

10121223431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121223431 is a deficient number, since it is larger than the sum of its proper divisors (920111233).

10121223431 is an equidigital number, since it uses as much as digits as its factorization.

10121223431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920111232.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10121223431 its reverse (13432212101), we get a palindrome (23553435532).

The spelling of 10121223431 in words is "ten billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred thirty-one".