1201433431 has 8 divisors (see below), whose sum is σ = 1355850000. Its totient is φ = 1054549440.

The previous prime is 1201433417. The next prime is 1201433449. The reversal of 1201433431 is 1343341021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201433431 - 2⁵ = 1201433399 is a prime.

It is a super-2 number, since 2×1201433431² = 2886884578248863522, 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 (1201433531) 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, 1882806 + ... + 1883443.

It is an arithmetic number, because the mean of its divisors is an integer number (169481250).

Almost surely, 2^1201433431 is an apocalyptic number.

1201433431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201433431 is a deficient number, since it is larger than the sum of its proper divisors (154416569).

1201433431 is a wasteful number, since it uses less digits than its factorization.

1201433431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766289.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1201433431 is about 34661.6997707845. The cubic root of 1201433431 is about 1063.0815251876.

Adding to 1201433431 its reverse (1343341021), we get a palindrome (2544774452).

The spelling of 1201433431 in words is "one billion, two hundred one million, four hundred thirty-three thousand, four hundred thirty-one".