20203935542 has 16 divisors (see below), whose sum is σ = 34971585792. Its totient is φ = 8574762600.

The previous prime is 20203935541. The next prime is 20203935571. The reversal of 20203935542 is 24553930202.

It is a super-2 number, since 2×20203935542² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203935541) 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, 7004084 + ... + 7006967.

It is an arithmetic number, because the mean of its divisors is an integer number (2185724112).

Almost surely, 2^20203935542 is an apocalyptic number.

20203935542 is a deficient number, since it is larger than the sum of its proper divisors (14767650250).

20203935542 is a wasteful number, since it uses less digits than its factorization.

20203935542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14011163.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20203935542 in words is "twenty billion, two hundred three million, nine hundred thirty-five thousand, five hundred forty-two".