20150223042 has 16 divisors (see below), whose sum is σ = 42052639680. Its totient is φ = 6424708752.

The previous prime is 20150223013. The next prime is 20150223047. The reversal of 20150223042 is 24032205102.

It is not an unprimeable number, because it can be changed into a prime (20150223047) 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, 73007917 + ... + 73008192.

It is an arithmetic number, because the mean of its divisors is an integer number (2628289980).

Almost surely, 2^20150223042 is an apocalyptic number.

20150223042 is an abundant number, since it is smaller than the sum of its proper divisors (21902416638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20150223042 is a wasteful number, since it uses less digits than its factorization.

20150223042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146016137.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20150223042 its reverse (24032205102), we get a palindrome (44182428144).

The spelling of 20150223042 in words is "twenty billion, one hundred fifty million, two hundred twenty-three thousand, forty-two".