1200200131 has 16 divisors (see below), whose sum is σ = 1323197568. Its totient is φ = 1081699200.

The previous prime is 1200200107. The next prime is 1200200137. The reversal of 1200200131 is 1310020021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200200131 is a prime.

It is a super-2 number, since 2×1200200131² = 2880960708904834322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200200137) 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, 279541 + ... + 283801.

It is an arithmetic number, because the mean of its divisors is an integer number (82699848).

Almost surely, 2^1200200131 is an apocalyptic number.

1200200131 is a deficient number, since it is larger than the sum of its proper divisors (122997437).

1200200131 is a wasteful number, since it uses less digits than its factorization.

1200200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1200200131 is about 34643.9046731167. The cubic root of 1200200131 is about 1062.7176411549.

Adding to 1200200131 its reverse (1310020021), we get a palindrome (2510220152).

The spelling of 1200200131 in words is "one billion, two hundred million, two hundred thousand, one hundred thirty-one".