133031212550 has 48 divisors (see below), whose sum is σ = 255037006944. Its totient is φ = 51602880000.

The previous prime is 133031212543. The next prime is 133031212577. The reversal of 133031212550 is 55212130331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90611 + ... + 523710.

It is an arithmetic number, because the mean of its divisors is an integer number (5313270978).

Almost surely, 2^133031212550 is an apocalyptic number.

133031212550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133031212550 is a deficient number, since it is larger than the sum of its proper divisors (122005794394).

133031212550 is a wasteful number, since it uses less digits than its factorization.

133031212550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614465 (or 614460 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 133031212550 its reverse (55212130331), we get a palindrome (188243342881).

The spelling of 133031212550 in words is "one hundred thirty-three billion, thirty-one million, two hundred twelve thousand, five hundred fifty".