151231323 has 8 divisors (see below), whose sum is σ = 201829968. Its totient is φ = 100726784.

The previous prime is 151231309. The next prime is 151231331. The reversal of 151231323 is 323132151.

151231323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151231323 - 2⁴ = 151231307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151231323.

It is not an unprimeable number, because it can be changed into a prime (151231363) 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, 19686 + ... + 26267.

It is an arithmetic number, because the mean of its divisors is an integer number (25228746).

Almost surely, 2^151231323 is an apocalyptic number.

151231323 is a deficient number, since it is larger than the sum of its proper divisors (50598645).

151231323 is a wasteful number, since it uses less digits than its factorization.

151231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47053.

The product of its digits is 540, while the sum is 21.

The square root of 151231323 is about 12297.6145247767. The cubic root of 151231323 is about 532.7791866233.

Adding to 151231323 its reverse (323132151), we get a palindrome (474363474).

It can be divided in two parts, 15123 and 1323, that multiplied together give a square (20007729 = 4473²).

The spelling of 151231323 in words is "one hundred fifty-one million, two hundred thirty-one thousand, three hundred twenty-three".