31230141 has 4 divisors (see below), whose sum is σ = 41640192. Its totient is φ = 20820092.

The previous prime is 31230079. The next prime is 31230163. The reversal of 31230141 is 14103213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14103213 = 3 ⋅4701071.

It is a cyclic number.

It is not a de Polignac number, because 31230141 - 2⁶ = 31230077 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31230141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230191) 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, 5205021 + ... + 5205026.

It is an arithmetic number, because the mean of its divisors is an integer number (10410048).

Almost surely, 2^31230141 is an apocalyptic number.

It is an amenable number.

31230141 is a deficient number, since it is larger than the sum of its proper divisors (10410051).

31230141 is a wasteful number, since it uses less digits than its factorization.

31230141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10410050.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31230141 is about 5588.3934185059. The cubic root of 31230141 is about 314.9135262760.

Adding to 31230141 its reverse (14103213), we get a palindrome (45333354).

The spelling of 31230141 in words is "thirty-one million, two hundred thirty thousand, one hundred forty-one".