1131201201 has 8 divisors (see below), whose sum is σ = 1624288960. Its totient is φ = 696123792.

The previous prime is 1131201167. The next prime is 1131201209. The reversal of 1131201201 is 1021021311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131201201 - 2⁷ = 1131201073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131201209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14502541 + ... + 14502618.

It is an arithmetic number, because the mean of its divisors is an integer number (203036120).

Almost surely, 2^1131201201 is an apocalyptic number.

It is an amenable number.

1131201201 is a deficient number, since it is larger than the sum of its proper divisors (493087759).

1131201201 is a wasteful number, since it uses less digits than its factorization.

1131201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29005175.

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

The square root of 1131201201 is about 33633.3346696399. The cubic root of 1131201201 is about 1041.9493766568.

Adding to 1131201201 its reverse (1021021311), we get a palindrome (2152222512).

The spelling of 1131201201 in words is "one billion, one hundred thirty-one million, two hundred one thousand, two hundred one".