31134511201223 has 2 divisors, whose sum is σ = 31134511201224. Its totient is φ = 31134511201222.

The previous prime is 31134511201141. The next prime is 31134511201267. The reversal of 31134511201223 is 32210211543113.

It is a strong prime.

It is an emirp because it is prime and its reverse (32210211543113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31134511201223 - 2²² = 31134507006919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31134511231223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15567255600611 + 15567255600612.

It is an arithmetic number, because the mean of its divisors is an integer number (15567255600612).

Almost surely, 2^{31134511201223} is an apocalyptic number.

31134511201223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31134511201223 is an equidigital number, since it uses as much as digits as its factorization.

31134511201223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 31134511201223 its reverse (32210211543113), we get a palindrome (63344722744336).

The spelling of 31134511201223 in words is "thirty-one trillion, one hundred thirty-four billion, five hundred eleven million, two hundred one thousand, two hundred twenty-three".