133263031400 has 24 divisors (see below), whose sum is σ = 309836548470. Its totient is φ = 53305212480.

The previous prime is 133263031397. The next prime is 133263031439. The reversal of 133263031400 is 4130362331.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 114391415524 + 18871615876 = 338218^2 + 137374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133263031400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333157379 + ... + 333157778.

Almost surely, 2^133263031400 is an apocalyptic number.

133263031400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133263031400 is an abundant number, since it is smaller than the sum of its proper divisors (176573517070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133263031400 is a wasteful number, since it uses less digits than its factorization.

133263031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666315173 (or 666315164 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 133263031400 its reverse (4130362331), we get a palindrome (137393393731).

The spelling of 133263031400 in words is "one hundred thirty-three billion, two hundred sixty-three million, thirty-one thousand, four hundred".