31231123220003 has 8 divisors (see below), whose sum is σ = 36563266209120. Its totient is φ = 26116618720320.

The previous prime is 31231123219999. The next prime is 31231123220069. The reversal of 31231123220003 is 30002232113213.

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 31231123220003 - 2² = 31231123219999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31231123220203) 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, 54409622048 + ... + 54409622621.

It is an arithmetic number, because the mean of its divisors is an integer number (4570408276140).

Almost surely, 2^{31231123220003} is an apocalyptic number.

31231123220003 is a deficient number, since it is larger than the sum of its proper divisors (5332142989117).

31231123220003 is a wasteful number, since it uses less digits than its factorization.

31231123220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108819244717.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31231123220003 its reverse (30002232113213), we get a palindrome (61233355333216).

The spelling of 31231123220003 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred twenty-three million, two hundred twenty thousand, three".