31413123 has 16 divisors (see below), whose sum is σ = 53186560. Its totient is φ = 17950248.

The previous prime is 31413103. The next prime is 31413131. The reversal of 31413123 is 32131413.

It is not a de Polignac number, because 31413123 - 2¹⁰ = 31412099 is a prime.

It is a super-2 number, since 2×31413123² = 1973568593226258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31413096 and 31413105.

It is not an unprimeable number, because it can be changed into a prime (31413103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82915 + ... + 83292.

It is an arithmetic number, because the mean of its divisors is an integer number (3324160).

Almost surely, 2^31413123 is an apocalyptic number.

31413123 is a deficient number, since it is larger than the sum of its proper divisors (21773437).

31413123 is a wasteful number, since it uses less digits than its factorization.

31413123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166223 (or 166217 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 31413123 is about 5604.7411180179. The cubic root of 31413123 is about 315.5273705558.

Adding to 31413123 its reverse (32131413), we get a palindrome (63544536).

The spelling of 31413123 in words is "thirty-one million, four hundred thirteen thousand, one hundred twenty-three".