1231350113522 has 8 divisors (see below), whose sum is σ = 1857701616876. Its totient is φ = 612116241232.

The previous prime is 1231350113519. The next prime is 1231350113531. The reversal of 1231350113522 is 2253110531321.

It can be written as a sum of positive squares in 2 ways, for example, as 1182893336881 + 48456776641 = 1087609^2 + 220129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779407333 + ... + 1779408024.

Almost surely, 2^{1231350113522} is an apocalyptic number.

1231350113522 is a deficient number, since it is larger than the sum of its proper divisors (626351503354).

1231350113522 is a wasteful number, since it uses less digits than its factorization.

1231350113522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558815532.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 1231350113522 its reverse (2253110531321), we get a palindrome (3484460644843).

The spelling of 1231350113522 in words is "one trillion, two hundred thirty-one billion, three hundred fifty million, one hundred thirteen thousand, five hundred twenty-two".