131223301 has 4 divisors (see below), whose sum is σ = 143152704. Its totient is φ = 119293900.

The previous prime is 131223299. The next prime is 131223307. The reversal of 131223301 is 103322131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 103322131 = 11 ⋅9392921.

It is not a de Polignac number, because 131223301 - 2¹ = 131223299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5964685 + ... + 5964706.

It is an arithmetic number, because the mean of its divisors is an integer number (35788176).

Almost surely, 2^131223301 is an apocalyptic number.

131223301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131223301 is a deficient number, since it is larger than the sum of its proper divisors (11929403).

131223301 is a wasteful number, since it uses less digits than its factorization.

131223301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11929402.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131223301 is about 11455.2739382347. The cubic root of 131223301 is about 508.1637166848.

Adding to 131223301 its reverse (103322131), we get a palindrome (234545432).

The spelling of 131223301 in words is "one hundred thirty-one million, two hundred twenty-three thousand, three hundred one".