13120311004 has 12 divisors (see below), whose sum is σ = 23093265384. Its totient is φ = 6522235184.

The previous prime is 13120310981. The next prime is 13120311007. The reversal of 13120311004 is 40011302131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120311007) 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, 9479302 + ... + 9480685.

It is an arithmetic number, because the mean of its divisors is an integer number (1924438782).

Almost surely, 2^13120311004 is an apocalyptic number.

It is an amenable number.

13120311004 is a deficient number, since it is larger than the sum of its proper divisors (9972954380).

13120311004 is a wasteful number, since it uses less digits than its factorization.

13120311004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18960164 (or 18960162 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13120311004 its reverse (40011302131), we get a palindrome (53131613135).

The spelling of 13120311004 in words is "thirteen billion, one hundred twenty million, three hundred eleven thousand, four".