31030413 has 4 divisors (see below), whose sum is σ = 41373888. Its totient is φ = 20686940.

The previous prime is 31030409. The next prime is 31030429. The reversal of 31030413 is 31403013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31030413 - 2² = 31030409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31030392 and 31030401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5171733 + ... + 5171738.

It is an arithmetic number, because the mean of its divisors is an integer number (10343472).

Almost surely, 2^31030413 is an apocalyptic number.

It is an amenable number.

31030413 is a deficient number, since it is larger than the sum of its proper divisors (10343475).

31030413 is a wasteful number, since it uses less digits than its factorization.

31030413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343474.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 31030413 is about 5570.4948613207. The cubic root of 31030413 is about 314.2407615655.

Adding to 31030413 its reverse (31403013), we get a palindrome (62433426).

The spelling of 31030413 in words is "thirty-one million, thirty thousand, four hundred thirteen".