1201120633 has 4 divisors (see below), whose sum is σ = 1201195620. Its totient is φ = 1201045648.

The previous prime is 1201120621. The next prime is 1201120649. The reversal of 1201120633 is 3360211021.

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 2 ways, for example, as 441126009 + 759994624 = 21003^2 + 27568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201120633 - 2¹⁷ = 1200989561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201120633.

It is not an unprimeable number, because it can be changed into a prime (1201120693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710 + ... + 49087.

It is an arithmetic number, because the mean of its divisors is an integer number (300298905).

Almost surely, 2^1201120633 is an apocalyptic number.

It is an amenable number.

1201120633 is a deficient number, since it is larger than the sum of its proper divisors (74987).

1201120633 is an equidigital number, since it uses as much as digits as its factorization.

1201120633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74986.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1201120633 is about 34657.1873209584. The cubic root of 1201120633 is about 1062.9892580038.

Adding to 1201120633 its reverse (3360211021), we get a palindrome (4561331654).

The spelling of 1201120633 in words is "one billion, two hundred one million, one hundred twenty thousand, six hundred thirty-three".