20353123722 has 128 divisors (see below), whose sum is σ = 44548899840. Its totient is φ = 6179120640.

The previous prime is 20353123717. The next prime is 20353123727. The reversal of 20353123722 is 22732135302.

It is an interprime number because it is at equal distance from previous prime (20353123717) and next prime (20353123727).

It is a self number, because there is not a number n which added to its sum of digits gives 20353123722.

It is not an unprimeable number, because it can be changed into a prime (20353123727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96460197 + ... + 96460407.

It is an arithmetic number, because the mean of its divisors is an integer number (348038280).

Almost surely, 2^20353123722 is an apocalyptic number.

20353123722 is an abundant number, since it is smaller than the sum of its proper divisors (24195776118).

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

20353123722 is a wasteful number, since it uses less digits than its factorization.

20353123722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 20353123722 in words is "twenty billion, three hundred fifty-three million, one hundred twenty-three thousand, seven hundred twenty-two".