351523046231081 has 2 divisors, whose sum is σ = 351523046231082. Its totient is φ = 351523046231080.

The previous prime is 351523046231069. The next prime is 351523046231221. The reversal of 351523046231081 is 180132640325153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348573380814400 + 2949665416681 = 18670120^2 + 1717459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351523046231081 is a prime.

It is a super-2 number, since 2×351523046231081² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (351523046231381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175761523115540 + 175761523115541.

It is an arithmetic number, because the mean of its divisors is an integer number (175761523115541).

Almost surely, 2^{351523046231081} is an apocalyptic number.

It is an amenable number.

351523046231081 is a deficient number, since it is larger than the sum of its proper divisors (1).

351523046231081 is an equidigital number, since it uses as much as digits as its factorization.

351523046231081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 351523046231081 in words is "three hundred fifty-one trillion, five hundred twenty-three billion, forty-six million, two hundred thirty-one thousand, eighty-one".