151231203 has 36 divisors (see below), whose sum is σ = 233583480. Its totient is φ = 94260672.

The previous prime is 151231163. The next prime is 151231211. The reversal of 151231203 is 302132151.

It is not a de Polignac number, because 151231203 - 2¹⁰ = 151230179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151231103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 288900 + ... + 289422.

It is an arithmetic number, because the mean of its divisors is an integer number (6488430).

Almost surely, 2^151231203 is an apocalyptic number.

151231203 is a deficient number, since it is larger than the sum of its proper divisors (82352277).

151231203 is a wasteful number, since it uses less digits than its factorization.

151231203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 151231203 is about 12297.6096457808. The cubic root of 151231203 is about 532.7790457055.

Adding to 151231203 its reverse (302132151), we get a palindrome (453363354).

The spelling of 151231203 in words is "one hundred fifty-one million, two hundred thirty-one thousand, two hundred three".