31323053 has 8 divisors (see below), whose sum is σ = 32778648. Its totient is φ = 29899584.

The previous prime is 31323023. The next prime is 31323107. The reversal of 31323053 is 35032313.

It can be written as a sum of positive squares in 4 ways, for example, as 18088009 + 13235044 = 4253^2 + 3638^2 .

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 31323053 - 2¹⁰ = 31322029 is a prime.

It is a super-2 number, since 2×31323053² = 1962267298481618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323023) 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, 6026 + ... + 9947.

It is an arithmetic number, because the mean of its divisors is an integer number (4097331).

Almost surely, 2^31323053 is an apocalyptic number.

It is an amenable number.

31323053 is a deficient number, since it is larger than the sum of its proper divisors (1455595).

31323053 is a wasteful number, since it uses less digits than its factorization.

31323053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16063.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 31323053 is about 5596.7001885039. The cubic root of 31323053 is about 315.2255141648.

Adding to 31323053 its reverse (35032313), we get a palindrome (66355366).

The spelling of 31323053 in words is "thirty-one million, three hundred twenty-three thousand, fifty-three".