1231145450522 has 8 divisors (see below), whose sum is σ = 1988773420116. Its totient is φ = 568220977152.

The previous prime is 1231145450519. The next prime is 1231145450551. The reversal of 1231145450522 is 2250545411321.

It can be written as a sum of positive squares in 2 ways, for example, as 1007576295961 + 223569154561 = 1003781^2 + 472831^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23675874023 + ... + 23675874074.

Almost surely, 2^{1231145450522} is an apocalyptic number.

1231145450522 is a deficient number, since it is larger than the sum of its proper divisors (757627969594).

1231145450522 is a wasteful number, since it uses less digits than its factorization.

1231145450522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47351748112.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 1231145450522 in words is "one trillion, two hundred thirty-one billion, one hundred forty-five million, four hundred fifty thousand, five hundred twenty-two".