31241142421 has 8 divisors (see below), whose sum is σ = 31657017600. Its totient is φ = 30825777840.

The previous prime is 31241142409. The next prime is 31241142467. The reversal of 31241142421 is 12424114213.

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 31241142421 - 2²³ = 31232753813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241142221) 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, 3670 + ... + 249991.

It is an arithmetic number, because the mean of its divisors is an integer number (3957127200).

Almost surely, 2^31241142421 is an apocalyptic number.

It is an amenable number.

31241142421 is a deficient number, since it is larger than the sum of its proper divisors (415875179).

31241142421 is a wasteful number, since it uses less digits than its factorization.

31241142421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255299.

The product of its digits is 1536, while the sum is 25.

Adding to 31241142421 its reverse (12424114213), we get a palindrome (43665256634).

The spelling of 31241142421 in words is "thirty-one billion, two hundred forty-one million, one hundred forty-two thousand, four hundred twenty-one".