347623233121 has 2 divisors, whose sum is σ = 347623233122. Its totient is φ = 347623233120.

The previous prime is 347623233079. The next prime is 347623233137. The reversal of 347623233121 is 121332326743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346525304896 + 1097928225 = 588664^2 + 33135^2 .

It is a cyclic number.

It is not a de Polignac number, because 347623233121 - 2¹³ = 347623224929 is a prime.

It is a super-2 number, since 2×347623233121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (347623233151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173811616560 + 173811616561.

It is an arithmetic number, because the mean of its divisors is an integer number (173811616561).

Almost surely, 2^347623233121 is an apocalyptic number.

It is an amenable number.

347623233121 is a deficient number, since it is larger than the sum of its proper divisors (1).

347623233121 is an equidigital number, since it uses as much as digits as its factorization.

347623233121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 37.

Adding to 347623233121 its reverse (121332326743), we get a palindrome (468955559864).

The spelling of 347623233121 in words is "three hundred forty-seven billion, six hundred twenty-three million, two hundred thirty-three thousand, one hundred twenty-one".