1201231 has 4 divisors (see below), whose sum is σ = 1208592. Its totient is φ = 1193872.

The previous prime is 1201229. The next prime is 1201241. The reversal of 1201231 is 1321021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201231 - 2¹ = 1201229 is a prime.

It is a super-2 number, since 2×1201231² = 2885911830722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201201) 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, 3430 + ... + 3763.

It is an arithmetic number, because the mean of its divisors is an integer number (302148).

2^1201231 is an apocalyptic number.

1201231 is a deficient number, since it is larger than the sum of its proper divisors (7361).

1201231 is an equidigital number, since it uses as much as digits as its factorization.

1201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7360.

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

The square root of 1201231 is about 1096.0068430443. The cubic root of 1201231 is about 106.3021815195.

Adding to 1201231 its reverse (1321021), we get a palindrome (2522252).

The spelling of 1201231 in words is "one million, two hundred one thousand, two hundred thirty-one".