1343123420 has 24 divisors (see below), whose sum is σ = 2986475184. Its totient is φ = 505646336.

The previous prime is 1343123389. The next prime is 1343123443. The reversal of 1343123420 is 243213431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1974842 + ... + 1975521.

It is an arithmetic number, because the mean of its divisors is an integer number (124436466).

Almost surely, 2^1343123420 is an apocalyptic number.

1343123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343123420 is an abundant number, since it is smaller than the sum of its proper divisors (1643351764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1343123420 is a wasteful number, since it uses less digits than its factorization.

1343123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950389 (or 3950387 counting only the distinct ones).

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

The square root of 1343123420 is about 36648.6482697521. The cubic root of 1343123420 is about 1103.3296959767.

Adding to 1343123420 its reverse (243213431), we get a palindrome (1586336851).

The spelling of 1343123420 in words is "one billion, three hundred forty-three million, one hundred twenty-three thousand, four hundred twenty".