31113141 has 8 divisors (see below), whose sum is σ = 41514240. Its totient is φ = 20727072.

The previous prime is 31113113. The next prime is 31113167. The reversal of 31113141 is 14131113.

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

It is not a de Polignac number, because 31113141 - 2⁵ = 31113109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31113141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113541) 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, 2625 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (5189280).

Almost surely, 2^31113141 is an apocalyptic number.

It is an amenable number.

31113141 is a deficient number, since it is larger than the sum of its proper divisors (10401099).

31113141 is a wasteful number, since it uses less digits than its factorization.

31113141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7515.

The product of its digits is 36, while the sum is 15.

The square root of 31113141 is about 5577.9154708547. The cubic root of 31113141 is about 314.5197721542.

Adding to 31113141 its reverse (14131113), we get a palindrome (45244254).

The spelling of 31113141 in words is "thirty-one million, one hundred thirteen thousand, one hundred forty-one".