31323201013 has 8 divisors (see below), whose sum is σ = 35508082400. Its totient is φ = 27391948848.

The previous prime is 31323201011. The next prime is 31323201043. The reversal of 31323201013 is 31010232313.

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 31323201013 - 2¹ = 31323201011 is a prime.

It is a super-2 number, since 2×31323201013² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323201011) 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, 63407043 + ... + 63407536.

It is an arithmetic number, because the mean of its divisors is an integer number (4438510300).

Almost surely, 2^31323201013 is an apocalyptic number.

It is an amenable number.

31323201013 is a deficient number, since it is larger than the sum of its proper divisors (4184881387).

31323201013 is a wasteful number, since it uses less digits than its factorization.

31323201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126814611.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31323201013 its reverse (31010232313), we get a palindrome (62333433326).

The spelling of 31323201013 in words is "thirty-one billion, three hundred twenty-three million, two hundred one thousand, thirteen".