31213413400303 has 2 divisors, whose sum is σ = 31213413400304. Its totient is φ = 31213413400302.

The previous prime is 31213413400241. The next prime is 31213413400427. The reversal of 31213413400303 is 30300431431213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31213413400303 - 2¹³ = 31213413392111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31213413400903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15606706700151 + 15606706700152.

It is an arithmetic number, because the mean of its divisors is an integer number (15606706700152).

Almost surely, 2^{31213413400303} is an apocalyptic number.

31213413400303 is a deficient number, since it is larger than the sum of its proper divisors (1).

31213413400303 is an equidigital number, since it uses as much as digits as its factorization.

31213413400303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31213413400303 its reverse (30300431431213), we get a palindrome (61513844831516).

The spelling of 31213413400303 in words is "thirty-one trillion, two hundred thirteen billion, four hundred thirteen million, four hundred thousand, three hundred three".