31434023 has 8 divisors (see below), whose sum is σ = 32237568. Its totient is φ = 30636184.

The previous prime is 31434017. The next prime is 31434047. The reversal of 31434023 is 32043413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31434023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31433986 and 31434004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11090 + ... + 13632.

It is an arithmetic number, because the mean of its divisors is an integer number (4029696).

Almost surely, 2^31434023 is an apocalyptic number.

31434023 is a deficient number, since it is larger than the sum of its proper divisors (803545).

31434023 is a wasteful number, since it uses less digits than its factorization.

31434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 31434023 is about 5606.6053008929. The cubic root of 31434023 is about 315.5973313392.

Adding to 31434023 its reverse (32043413), we get a palindrome (63477436).

The spelling of 31434023 in words is "thirty-one million, four hundred thirty-four thousand, twenty-three".