1342403231 has 4 divisors (see below), whose sum is σ = 1445665032. Its totient is φ = 1239141432.

The previous prime is 1342403213. The next prime is 1342403297. The reversal of 1342403231 is 1323042431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1342403231 - 2²⁶ = 1275294367 is a prime.

It is a super-2 number, since 2×1342403231² = 3604092869198478722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1342403197 and 1342403206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342403731) 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, 51630881 + ... + 51630906.

It is an arithmetic number, because the mean of its divisors is an integer number (361416258).

Almost surely, 2^1342403231 is an apocalyptic number.

1342403231 is a deficient number, since it is larger than the sum of its proper divisors (103261801).

1342403231 is a wasteful number, since it uses less digits than its factorization.

1342403231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103261800.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1342403231 is about 36638.8213647765. The cubic root of 1342403231 is about 1103.1324572210.

Adding to 1342403231 its reverse (1323042431), we get a palindrome (2665445662).

The spelling of 1342403231 in words is "one billion, three hundred forty-two million, four hundred three thousand, two hundred thirty-one".