20133511042 has 8 divisors (see below), whose sum is σ = 30201442956. Its totient is φ = 10066363392.

The previous prime is 20133511037. The next prime is 20133511067. The reversal of 20133511042 is 24011533102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19207465281 + 926045761 = 138591^2 + 30431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127023 + ... + 237490.

Almost surely, 2^20133511042 is an apocalyptic number.

20133511042 is a deficient number, since it is larger than the sum of its proper divisors (10067931914).

20133511042 is a wasteful number, since it uses less digits than its factorization.

20133511042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392132.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 20133511042 in words is "twenty billion, one hundred thirty-three million, five hundred eleven thousand, forty-two".