31423344123 has 32 divisors (see below), whose sum is σ = 44445888000. Its totient is φ = 19692288000.

The previous prime is 31423344101. The next prime is 31423344151. The reversal of 31423344123 is 32144332413.

It is a happy number.

It is not a de Polignac number, because 31423344123 - 2¹⁴ = 31423327739 is a prime.

It is a super-3 number, since 3×31423344123³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31423345123) 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, 13596138 + ... + 13598448.

It is an arithmetic number, because the mean of its divisors is an integer number (1388934000).

Almost surely, 2^31423344123 is an apocalyptic number.

31423344123 is a deficient number, since it is larger than the sum of its proper divisors (13022543877).

31423344123 is a wasteful number, since it uses less digits than its factorization.

31423344123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083.

The product of its digits is 20736, while the sum is 30.

Adding to 31423344123 its reverse (32144332413), we get a palindrome (63567676536).

The spelling of 31423344123 in words is "thirty-one billion, four hundred twenty-three million, three hundred forty-four thousand, one hundred twenty-three".