31423121303 has 32 divisors (see below), whose sum is σ = 38035906560. Its totient is φ = 25388334720.

The previous prime is 31423121297. The next prime is 31423121311. The reversal of 31423121303 is 30312132413.

It is not a de Polignac number, because 31423121303 - 2¹² = 31423117207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423121363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4012850 + ... + 4020672.

It is an arithmetic number, because the mean of its divisors is an integer number (1188622080).

Almost surely, 2^31423121303 is an apocalyptic number.

31423121303 is a deficient number, since it is larger than the sum of its proper divisors (6612785257).

31423121303 is a wasteful number, since it uses less digits than its factorization.

31423121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8327.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31423121303 its reverse (30312132413), we get a palindrome (61735253716).

The spelling of 31423121303 in words is "thirty-one billion, four hundred twenty-three million, one hundred twenty-one thousand, three hundred three".