31030203121323 has 32 divisors (see below), whose sum is σ = 48188540736000. Its totient is φ = 17392556902656.

The previous prime is 31030203121321. The next prime is 31030203121349. The reversal of 31030203121323 is 32312130203013.

It is not a de Polignac number, because 31030203121323 - 2¹ = 31030203121321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31030203121293 and 31030203121302.

It is not an unprimeable number, because it can be changed into a prime (31030203121321) 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, 825028 + ... + 7920926.

It is an arithmetic number, because the mean of its divisors is an integer number (1505891898000).

Almost surely, 2^{31030203121323} is an apocalyptic number.

31030203121323 is a deficient number, since it is larger than the sum of its proper divisors (17158337614677).

31030203121323 is a wasteful number, since it uses less digits than its factorization.

31030203121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099891.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31030203121323 its reverse (32312130203013), we get a palindrome (63342333324336).

The spelling of 31030203121323 in words is "thirty-one trillion, thirty billion, two hundred three million, one hundred twenty-one thousand, three hundred twenty-three".