31141213 has 8 divisors (see below), whose sum is σ = 31979520. Its totient is φ = 30310320.

The previous prime is 31141199. The next prime is 31141217. The reversal of 31141213 is 31214113.

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 31141213 - 2²¹ = 29044061 is a prime.

It is a super-2 number, since 2×31141213² = 1939550294222738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141217) 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, 7243 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (3997440).

Almost surely, 2^31141213 is an apocalyptic number.

It is an amenable number.

31141213 is a deficient number, since it is larger than the sum of its proper divisors (838307).

31141213 is a wasteful number, since it uses less digits than its factorization.

31141213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707.

The product of its digits is 72, while the sum is 16.

The square root of 31141213 is about 5580.4312557364. The cubic root of 31141213 is about 314.6143361090.

Adding to 31141213 its reverse (31214113), we get a palindrome (62355326).

Subtracting 31141213 from its reverse (31214113), we obtain a square (72900 = 270²).

The spelling of 31141213 in words is "thirty-one million, one hundred forty-one thousand, two hundred thirteen".