1202621423 has 4 divisors (see below), whose sum is σ = 1215019680. Its totient is φ = 1190223168.

The previous prime is 1202621419. The next prime is 1202621449. The reversal of 1202621423 is 3241262021.

It is a happy number.

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 1202621423 - 2² = 1202621419 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 (1202621023) 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, 6198983 + ... + 6199176.

It is an arithmetic number, because the mean of its divisors is an integer number (303754920).

Almost surely, 2^1202621423 is an apocalyptic number.

1202621423 is a deficient number, since it is larger than the sum of its proper divisors (12398257).

1202621423 is an equidigital number, since it uses as much as digits as its factorization.

1202621423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12398256.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1202621423 is about 34678.8324918818. The cubic root of 1202621423 is about 1063.4318057430.

Adding to 1202621423 its reverse (3241262021), we get a palindrome (4443883444).

The spelling of 1202621423 in words is "one billion, two hundred two million, six hundred twenty-one thousand, four hundred twenty-three".