31241211011 has 8 divisors (see below), whose sum is σ = 31381580400. Its totient is φ = 31101154560.

The previous prime is 31241211007. The next prime is 31241211107. The reversal of 31241211011 is 11011214213.

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 31241211011 - 2² = 31241211007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31241211311) 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, 123035 + ... + 278603.

It is an arithmetic number, because the mean of its divisors is an integer number (3922697550).

Almost surely, 2^31241211011 is an apocalyptic number.

31241211011 is a deficient number, since it is larger than the sum of its proper divisors (140369389).

31241211011 is a wasteful number, since it uses less digits than its factorization.

31241211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156469.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 31241211011 its reverse (11011214213), we get a palindrome (42252425224).

The spelling of 31241211011 in words is "thirty-one billion, two hundred forty-one million, two hundred eleven thousand, eleven".