1201831283 has 4 divisors (see below), whose sum is σ = 1202621928. Its totient is φ = 1201040640.

The previous prime is 1201831277. The next prime is 1201831289. The reversal of 1201831283 is 3821381021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1201831277) and next prime (1201831289).

It is a cyclic number.

It is not a de Polignac number, because 1201831283 - 2⁸ = 1201831027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201831289) 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, 393038 + ... + 396083.

It is an arithmetic number, because the mean of its divisors is an integer number (300655482).

Almost surely, 2^1201831283 is an apocalyptic number.

1201831283 is a deficient number, since it is larger than the sum of its proper divisors (790645).

1201831283 is an equidigital number, since it uses as much as digits as its factorization.

1201831283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790644.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1201831283 is about 34667.4383680133. The cubic root of 1201831283 is about 1063.1988579288.

The spelling of 1201831283 in words is "one billion, two hundred one million, eight hundred thirty-one thousand, two hundred eighty-three".