133031430505 has 16 divisors (see below), whose sum is σ = 169041268224. Its totient is φ = 100157080320.

The previous prime is 133031430491. The next prime is 133031430563. The reversal of 133031430505 is 505034130331.

It is not a de Polignac number, because 133031430505 - 2⁵ = 133031430473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194760 + ... + 1301350.

It is an arithmetic number, because the mean of its divisors is an integer number (10565079264).

Almost surely, 2^133031430505 is an apocalyptic number.

It is an amenable number.

133031430505 is a deficient number, since it is larger than the sum of its proper divisors (36009837719).

133031430505 is a wasteful number, since it uses less digits than its factorization.

133031430505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121296.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 133031430505 its reverse (505034130331), we get a palindrome (638065560836).

The spelling of 133031430505 in words is "one hundred thirty-three billion, thirty-one million, four hundred thirty thousand, five hundred five".