203123142192 has 40 divisors (see below), whose sum is σ = 525021594880. Its totient is φ = 67670706240.

The previous prime is 203123142191. The next prime is 203123142199. The reversal of 203123142192 is 291241321302.

It is not an unprimeable number, because it can be changed into a prime (203123142191) 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, 1067692 + ... + 1243467.

It is an arithmetic number, because the mean of its divisors is an integer number (13125539872).

Almost surely, 2^203123142192 is an apocalyptic number.

It is an amenable number.

203123142192 is an abundant number, since it is smaller than the sum of its proper divisors (321898452688).

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

203123142192 is a wasteful number, since it uses less digits than its factorization.

203123142192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313001 (or 2312995 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 203123142192 its reverse (291241321302), we get a palindrome (494364463494).

The spelling of 203123142192 in words is "two hundred three billion, one hundred twenty-three million, one hundred forty-two thousand, one hundred ninety-two".