31230140511203 has 2 divisors, whose sum is σ = 31230140511204. Its totient is φ = 31230140511202.

The previous prime is 31230140511191. The next prime is 31230140511223. The reversal of 31230140511203 is 30211504103213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31230140511203 - 2¹² = 31230140507107 is a prime.

It is not a weakly prime, because it can be changed into another prime (31230140511223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615070255601 + 15615070255602.

It is an arithmetic number, because the mean of its divisors is an integer number (15615070255602).

Almost surely, 2^{31230140511203} is an apocalyptic number.

31230140511203 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230140511203 is an equidigital number, since it uses as much as digits as its factorization.

31230140511203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 31230140511203 its reverse (30211504103213), we get a palindrome (61441644614416).

The spelling of 31230140511203 in words is "thirty-one trillion, two hundred thirty billion, one hundred forty million, five hundred eleven thousand, two hundred three".