31242353 has 8 divisors (see below), whose sum is σ = 31744896. Its totient is φ = 30744000.

The previous prime is 31242347. The next prime is 31242377. The reversal of 31242353 is 35324213.

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

It is a cyclic number.

It is not a de Polignac number, because 31242353 - 2¹² = 31238257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31242383) 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, 16148 + ... + 17978.

It is an arithmetic number, because the mean of its divisors is an integer number (3968112).

Almost surely, 2^31242353 is an apocalyptic number.

It is an amenable number.

31242353 is a deficient number, since it is larger than the sum of its proper divisors (502543).

31242353 is a wasteful number, since it uses less digits than its factorization.

31242353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095.

The product of its digits is 2160, while the sum is 23.

The square root of 31242353 is about 5589.4859334289. The cubic root of 31242353 is about 314.9545680677.

Adding to 31242353 its reverse (35324213), we get a palindrome (66566566).

The spelling of 31242353 in words is "thirty-one million, two hundred forty-two thousand, three hundred fifty-three".