31240334402011 has 48 divisors (see below), whose sum is σ = 36827877247200. Its totient is φ = 26421321830400.

The previous prime is 31240334401981. The next prime is 31240334402023. The reversal of 31240334402011 is 11020443304213.

It is a happy number.

It is not a de Polignac number, because 31240334402011 - 2³¹ = 31238186918363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31240334402041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 987758380 + ... + 987790006.

It is an arithmetic number, because the mean of its divisors is an integer number (767247442650).

Almost surely, 2^{31240334402011} is an apocalyptic number.

31240334402011 is a deficient number, since it is larger than the sum of its proper divisors (5587542845189).

31240334402011 is a wasteful number, since it uses less digits than its factorization.

31240334402011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32684 (or 32677 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31240334402011 its reverse (11020443304213), we get a palindrome (42260777706224).

The spelling of 31240334402011 in words is "thirty-one trillion, two hundred forty billion, three hundred thirty-four million, four hundred two thousand, eleven".