311232423 has 8 divisors (see below), whose sum is σ = 418244608. Its totient is φ = 205854264.

The previous prime is 311232401. The next prime is 311232443. The reversal of 311232423 is 324232113.

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

It is not a de Polignac number, because 311232423 - 2¹² = 311228327 is a prime.

It is a super-2 number, since 2×311232423² = 193731242252901858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311232423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311232443) 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, 408061 + ... + 408822.

It is an arithmetic number, because the mean of its divisors is an integer number (52280576).

Almost surely, 2^311232423 is an apocalyptic number.

311232423 is a deficient number, since it is larger than the sum of its proper divisors (107012185).

311232423 is a wasteful number, since it uses less digits than its factorization.

311232423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817013.

The product of its digits is 864, while the sum is 21.

The square root of 311232423 is about 17641.7806074104. The cubic root of 311232423 is about 677.6856318807.

Adding to 311232423 its reverse (324232113), we get a palindrome (635464536).

It can be divided in two parts, 311232 and 423, that added together give a triangular number (311655 = T₇₈₉).

The spelling of 311232423 in words is "three hundred eleven million, two hundred thirty-two thousand, four hundred twenty-three".