31203000111323 has 32 divisors (see below), whose sum is σ = 32371333005312. Its totient is φ = 30057108307200.

The previous prime is 31203000111313. The next prime is 31203000111331. The reversal of 31203000111323 is 32311100030213.

It is a cyclic number.

It is not a de Polignac number, because 31203000111323 - 2¹⁶ = 31203000045787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31203000111295 and 31203000111304.

It is not an unprimeable number, because it can be changed into a prime (31203000111313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 668092190 + ... + 668138892.

It is an arithmetic number, because the mean of its divisors is an integer number (1011604156416).

Almost surely, 2^{31203000111323} is an apocalyptic number.

31203000111323 is a deficient number, since it is larger than the sum of its proper divisors (1168332893989).

31203000111323 is a wasteful number, since it uses less digits than its factorization.

31203000111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47555.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31203000111323 its reverse (32311100030213), we get a palindrome (63514100141536).

The spelling of 31203000111323 in words is "thirty-one trillion, two hundred three billion, one hundred eleven thousand, three hundred twenty-three".