20133131242 has 8 divisors (see below), whose sum is σ = 34513939296. Its totient is φ = 8628484812.

The previous prime is 20133131237. The next prime is 20133131261. The reversal of 20133131242 is 24213133102.

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, 719040388 + ... + 719040415.

It is an arithmetic number, because the mean of its divisors is an integer number (4314242412).

Almost surely, 2^20133131242 is an apocalyptic number.

20133131242 is a deficient number, since it is larger than the sum of its proper divisors (14380808054).

20133131242 is a wasteful number, since it uses less digits than its factorization.

20133131242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438080812.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20133131242 its reverse (24213133102), we get a palindrome (44346264344).

The spelling of 20133131242 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-one thousand, two hundred forty-two".