31240111241105 has 32 divisors (see below), whose sum is σ = 42170254124544. Its totient is φ = 22044006521856.

The previous prime is 31240111241093. The next prime is 31240111241111. The reversal of 31240111241105 is 50114211104213.

It is a cyclic number.

It is not a de Polignac number, because 31240111241105 - 2⁴⁰ = 30140599613329 is a prime.

It is a super-2 number, since 2×31240111241105² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9233549 + ... + 12154778.

It is an arithmetic number, because the mean of its divisors is an integer number (1317820441392).

Almost surely, 2^{31240111241105} is an apocalyptic number.

It is an amenable number.

31240111241105 is a deficient number, since it is larger than the sum of its proper divisors (10930142883439).

31240111241105 is a wasteful number, since it uses less digits than its factorization.

31240111241105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21389345.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 31240111241105 its reverse (50114211104213), we get a palindrome (81354322345318).

The spelling of 31240111241105 in words is "thirty-one trillion, two hundred forty billion, one hundred eleven million, two hundred forty-one thousand, one hundred five".