1201087331 has 2 divisors, whose sum is σ = 1201087332. Its totient is φ = 1201087330.

The previous prime is 1201087291. The next prime is 1201087399. The reversal of 1201087331 is 1337801021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201087331 - 2¹⁰ = 1201086307 is a prime.

It is a super-2 number, since 2×1201087331² = 2885221553377407122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201087331.

It is not a weakly prime, because it can be changed into another prime (1201084331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600543665 + 600543666.

It is an arithmetic number, because the mean of its divisors is an integer number (600543666).

Almost surely, 2^1201087331 is an apocalyptic number.

1201087331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201087331 is an equidigital number, since it uses as much as digits as its factorization.

1201087331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1201087331 is about 34656.7068689453. The cubic root of 1201087331 is about 1062.9794338462.

Adding to 1201087331 its reverse (1337801021), we get a palindrome (2538888352).

The spelling of 1201087331 in words is "one billion, two hundred one million, eighty-seven thousand, three hundred thirty-one".