31241442123 has 8 divisors (see below), whose sum is σ = 46283618000. Its totient is φ = 20827628064.

The previous prime is 31241442097. The next prime is 31241442139. The reversal of 31241442123 is 32124414213.

31241442123 is a `hidden beast` number, since 31 + 2 + 414 + 4 + 212 + 3 = 666.

It is not a de Polignac number, because 31241442123 - 2⁵ = 31241442091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1157090449 = 31241442123 / (3 + 1 + 2 + 4 + 1 + 4 + 4 + 2 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31241442163) 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, 578545198 + ... + 578545251.

It is an arithmetic number, because the mean of its divisors is an integer number (5785452250).

Almost surely, 2^31241442123 is an apocalyptic number.

31241442123 is a deficient number, since it is larger than the sum of its proper divisors (15042175877).

31241442123 is a wasteful number, since it uses less digits than its factorization.

31241442123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157090458 (or 1157090452 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 31241442123 its reverse (32124414213), we get a palindrome (63365856336).

The spelling of 31241442123 in words is "thirty-one billion, two hundred forty-one million, four hundred forty-two thousand, one hundred twenty-three".