1232103421 has 2 divisors, whose sum is σ = 1232103422. Its totient is φ = 1232103420.

The previous prime is 1232103419. The next prime is 1232103473. The reversal of 1232103421 is 1243012321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1086032025 + 146071396 = 32955^2 + 12086^2 .

It is an emirp because it is prime and its reverse (1243012321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1232103421 - 2¹ = 1232103419 is a prime.

Together with 1232103419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232103221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616051710 + 616051711.

It is an arithmetic number, because the mean of its divisors is an integer number (616051711).

Almost surely, 2^1232103421 is an apocalyptic number.

It is an amenable number.

1232103421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232103421 is an equidigital number, since it uses as much as digits as its factorization.

1232103421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1232103421 is about 35101.3307582490. The cubic root of 1232103421 is about 1072.0516785275.

Adding to 1232103421 its reverse (1243012321), we get a palindrome (2475115742).

It can be divided in two parts, 1232 and 103421, that added together give a triangular number (104653 = T₄₅₇).

The spelling of 1232103421 in words is "one billion, two hundred thirty-two million, one hundred three thousand, four hundred twenty-one".