31301322010203 has 16 divisors (see below), whose sum is σ = 50207634302720. Its totient is φ = 16945076576736.

The previous prime is 31301322010171. The next prime is 31301322010243. The reversal of 31301322010203 is 30201022310313.

It is not a de Polignac number, because 31301322010203 - 2⁵ = 31301322010171 is a prime.

It is a super-2 number, since 2×31301322010203² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31301322010203.

It is not an unprimeable number, because it can be changed into a prime (31301322010243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39224713900 + ... + 39224714697.

It is an arithmetic number, because the mean of its divisors is an integer number (3137977143920).

Almost surely, 2^{31301322010203} is an apocalyptic number.

31301322010203 is a deficient number, since it is larger than the sum of its proper divisors (18906312292517).

31301322010203 is a wasteful number, since it uses less digits than its factorization.

31301322010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78449428626.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31301322010203 its reverse (30201022310313), we get a palindrome (61502344320516).

The spelling of 31301322010203 in words is "thirty-one trillion, three hundred one billion, three hundred twenty-two million, ten thousand, two hundred three".