133431311201 has 6 divisors (see below), whose sum is σ = 134032391010. Its totient is φ = 132832915008.

The previous prime is 133431311183. The next prime is 133431311231. The reversal of 133431311201 is 102113134331.

It can be written as a sum of positive squares in only one way, i.e., 91978758400 + 41452552801 = 303280^2 + 203599^2 .

It is not a de Polignac number, because 133431311201 - 2¹⁴ = 133431294817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133431311231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1291856 + ... + 1391313.

It is an arithmetic number, because the mean of its divisors is an integer number (22338731835).

Almost surely, 2^133431311201 is an apocalyptic number.

It is an amenable number.

133431311201 is a deficient number, since it is larger than the sum of its proper divisors (601079809).

133431311201 is an frugal number, since it uses more digits than its factorization.

133431311201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683615 (or 2683392 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 133431311201 its reverse (102113134331), we get a palindrome (235544445532).

The spelling of 133431311201 in words is "one hundred thirty-three billion, four hundred thirty-one million, three hundred eleven thousand, two hundred one".