31323201003 has 24 divisors (see below), whose sum is σ = 45709182480. Its totient is φ = 20667873600.

The previous prime is 31323201001. The next prime is 31323201011. The reversal of 31323201003 is 30010232313.

It is not a de Polignac number, because 31323201003 - 2¹ = 31323201001 is a prime.

It is a super-2 number, since 2×31323201003² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31323201001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3716328 + ... + 3724746.

It is an arithmetic number, because the mean of its divisors is an integer number (1904549270).

Almost surely, 2^31323201003 is an apocalyptic number.

31323201003 is a deficient number, since it is larger than the sum of its proper divisors (14385981477).

31323201003 is a wasteful number, since it uses less digits than its factorization.

31323201003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619 (or 12616 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31323201003 its reverse (30010232313), we get a palindrome (61333433316).

The spelling of 31323201003 in words is "thirty-one billion, three hundred twenty-three million, two hundred one thousand, three".