13001121031 has 8 divisors (see below), whose sum is σ = 13467943424. Its totient is φ = 12537263160.

The previous prime is 13001121017. The next prime is 13001121037. The reversal of 13001121031 is 13012110031.

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 13001121031 - 2⁵ = 13001120999 is a prime.

It is a super-2 number, since 2×13001121031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001121037) 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, 732201 + ... + 749746.

It is an arithmetic number, because the mean of its divisors is an integer number (1683492928).

Almost surely, 2^13001121031 is an apocalyptic number.

13001121031 is a deficient number, since it is larger than the sum of its proper divisors (466822393).

13001121031 is a wasteful number, since it uses less digits than its factorization.

13001121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482261.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13001121031 its reverse (13012110031), we get a palindrome (26013231062).

The spelling of 13001121031 in words is "thirteen billion, one million, one hundred twenty-one thousand, thirty-one".