31213041041 has 16 divisors (see below), whose sum is σ = 38427105024. Its totient is φ = 24688926144.

The previous prime is 31213041037. The next prime is 31213041073. The reversal of 31213041041 is 14014031213.

It is a cyclic number.

It is not a de Polignac number, because 31213041041 - 2² = 31213041037 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31213041001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280691 + ... + 375783.

It is an arithmetic number, because the mean of its divisors is an integer number (2401694064).

Almost surely, 2^31213041041 is an apocalyptic number.

It is an amenable number.

31213041041 is a deficient number, since it is larger than the sum of its proper divisors (7214063983).

31213041041 is a wasteful number, since it uses less digits than its factorization.

31213041041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98720.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31213041041 its reverse (14014031213), we get a palindrome (45227072254).

The spelling of 31213041041 in words is "thirty-one billion, two hundred thirteen million, forty-one thousand, forty-one".