31044120001 has 4 divisors (see below), whose sum is σ = 31060349892. Its totient is φ = 31027890112.

The previous prime is 31044119999. The next prime is 31044120043. The reversal of 31044120001 is 10002144013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10002144013 = 16567 ⋅603739.

It can be written as a sum of positive squares in 2 ways, for example, as 29224244401 + 1819875600 = 170951^2 + 42660^2 .

It is a cyclic number.

It is not a de Polignac number, because 31044120001 - 2¹ = 31044119999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31044123001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8112076 + ... + 8115901.

It is an arithmetic number, because the mean of its divisors is an integer number (7765087473).

Almost surely, 2^31044120001 is an apocalyptic number.

It is an amenable number.

31044120001 is a deficient number, since it is larger than the sum of its proper divisors (16229891).

31044120001 is a wasteful number, since it uses less digits than its factorization.

31044120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16229890.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31044120001 its reverse (10002144013), we get a palindrome (41046264014).

The spelling of 31044120001 in words is "thirty-one billion, forty-four million, one hundred twenty thousand, one".