31203130212311 has 8 divisors (see below), whose sum is σ = 33038941413600. Its totient is φ = 29367356005888.

The previous prime is 31203130212271. The next prime is 31203130212323. The reversal of 31203130212311 is 11321203130213.

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 31203130212311 - 2¹⁴ = 31203130195927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203130212511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7502786 + ... + 10894863.

It is an arithmetic number, because the mean of its divisors is an integer number (4129867676700).

Almost surely, 2^{31203130212311} is an apocalyptic number.

31203130212311 is a deficient number, since it is larger than the sum of its proper divisors (1835811201289).

31203130212311 is a wasteful number, since it uses less digits than its factorization.

31203130212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18497433.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31203130212311 its reverse (11321203130213), we get a palindrome (42524333342524).

The spelling of 31203130212311 in words is "thirty-one trillion, two hundred three billion, one hundred thirty million, two hundred twelve thousand, three hundred eleven".