133023001021642 has 16 divisors (see below), whose sum is σ = 204175581014592. Its totient is φ = 64964485262880.

The previous prime is 133023001021639. The next prime is 133023001021643. The reversal of 133023001021642 is 246120100320331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133023001021642.

It is not an unprimeable number, because it can be changed into a prime (133023001021643) 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, 22277043 + ... + 27610009.

It is an arithmetic number, because the mean of its divisors is an integer number (12760973813412).

Almost surely, 2^{133023001021642} is an apocalyptic number.

133023001021642 is a deficient number, since it is larger than the sum of its proper divisors (71152579992950).

133023001021642 is a wasteful number, since it uses less digits than its factorization.

133023001021642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623053.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 133023001021642 its reverse (246120100320331), we get a palindrome (379143101341973).

The spelling of 133023001021642 in words is "one hundred thirty-three trillion, twenty-three billion, one million, twenty-one thousand, six hundred forty-two".