31031012001 has 16 divisors (see below), whose sum is σ = 45142637760. Its totient is φ = 18803915520.

The previous prime is 31031011987. The next prime is 31031012009. The reversal of 31031012001 is 10021013013.

It is not a de Polignac number, because 31031012001 - 2⁶ = 31031011937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31031012009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172005 + ... + 302733.

It is an arithmetic number, because the mean of its divisors is an integer number (2821414860).

Almost surely, 2^31031012001 is an apocalyptic number.

It is an amenable number.

31031012001 is a deficient number, since it is larger than the sum of its proper divisors (14111625759).

31031012001 is a wasteful number, since it uses less digits than its factorization.

31031012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137936.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31031012001 its reverse (10021013013), we get a palindrome (41052025014).

The spelling of 31031012001 in words is "thirty-one billion, thirty-one million, twelve thousand, one".