1423121330 has 16 divisors (see below), whose sum is σ = 2573109504. Its totient is φ = 566694960.

The previous prime is 1423121317. The next prime is 1423121351. The reversal of 1423121330 is 331213241.

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, 316856 + ... + 321315.

It is an arithmetic number, because the mean of its divisors is an integer number (160819344).

Almost surely, 2^1423121330 is an apocalyptic number.

1423121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423121330 is a deficient number, since it is larger than the sum of its proper divisors (1149988174).

1423121330 is a wasteful number, since it uses less digits than its factorization.

1423121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638401.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1423121330 is about 37724.2803774969. The cubic root of 1423121330 is about 1124.8138174197.

Adding to 1423121330 its reverse (331213241), we get a palindrome (1754334571).

The spelling of 1423121330 in words is "one billion, four hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty".