1201233687 has 16 divisors (see below), whose sum is σ = 1653118080. Its totient is φ = 775491552.

The previous prime is 1201233667. The next prime is 1201233707. The reversal of 1201233687 is 7863321021.

It is an interprime number because it is at equal distance from previous prime (1201233667) and next prime (1201233707).

It is not a de Polignac number, because 1201233687 - 2¹¹ = 1201231639 is a prime.

It is a super-2 number, since 2×1201233687² = 2885924741567227938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201233647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38788 + ... + 62505.

It is an arithmetic number, because the mean of its divisors is an integer number (103319880).

Almost surely, 2^1201233687 is an apocalyptic number.

1201233687 is a deficient number, since it is larger than the sum of its proper divisors (451884393).

1201233687 is a wasteful number, since it uses less digits than its factorization.

1201233687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101422.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1201233687 is about 34658.8183151128. The cubic root of 1201233687 is about 1063.0226078090.

The spelling of 1201233687 in words is "one billion, two hundred one million, two hundred thirty-three thousand, six hundred eighty-seven".