31242101441 has 4 divisors (see below), whose sum is σ = 33079872132. Its totient is φ = 29404330752.

The previous prime is 31242101431. The next prime is 31242101459. The reversal of 31242101441 is 14410124213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14410124213 = 641 ⋅22480693.

It can be written as a sum of positive squares in 2 ways, for example, as 25662758416 + 5579343025 = 160196^2 + 74695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31242101441 is a prime.

It is a super-3 number, since 3×31242101441³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31242101411) 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, 918885320 + ... + 918885353.

It is an arithmetic number, because the mean of its divisors is an integer number (8269968033).

Almost surely, 2^31242101441 is an apocalyptic number.

It is an amenable number.

31242101441 is a deficient number, since it is larger than the sum of its proper divisors (1837770691).

31242101441 is a wasteful number, since it uses less digits than its factorization.

31242101441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837770690.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31242101441 its reverse (14410124213), we get a palindrome (45652225654).

The spelling of 31242101441 in words is "thirty-one billion, two hundred forty-two million, one hundred one thousand, four hundred forty-one".