1190850570121 has 3 divisors (see below), whose sum is σ = 1190851661383. Its totient is φ = 1190849478860.

The previous prime is 1190850570113. The next prime is 1190850570187. The reversal of 1190850570121 is 1210750580911.

The square root of 1190850570121 is 1091261.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 971133382521 + 219717187600 = 985461^2 + 468740^2 .

It is not a de Polignac number, because 1190850570121 - 2³ = 1190850570113 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1190850576121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 545631 + ... + 1636891.

Almost surely, 2^{1190850570121} is an apocalyptic number.

1190850570121 is the 1091261-st square number.

1190850570121 is the 545631-st centered octagonal number.

It is an amenable number.

1190850570121 is a deficient number, since it is larger than the sum of its proper divisors (1091262).

1190850570121 is an frugal number, since it uses more digits than its factorization.

1190850570121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182522 (or 1091261 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 40.

The spelling of 1190850570121 in words is "one trillion, one hundred ninety billion, eight hundred fifty million, five hundred seventy thousand, one hundred twenty-one".