201542403012 has 24 divisors (see below), whose sum is σ = 472053696576. Its totient is φ = 66925359648.

The previous prime is 201542402969. The next prime is 201542403019. The reversal of 201542403012 is 210304245102.

It is not an unprimeable number, because it can be changed into a prime (201542403019) 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, 31926883 + ... + 31933194.

It is an arithmetic number, because the mean of its divisors is an integer number (19668904024).

Almost surely, 2^201542403012 is an apocalyptic number.

It is an amenable number.

201542403012 is an abundant number, since it is smaller than the sum of its proper divisors (270511293564).

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

201542403012 is a wasteful number, since it uses less digits than its factorization.

201542403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63860347 (or 63860345 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 201542403012 its reverse (210304245102), we get a palindrome (411846648114).

The spelling of 201542403012 in words is "two hundred one billion, five hundred forty-two million, four hundred three thousand, twelve".