30451223002 has 4 divisors (see below), whose sum is σ = 45676834506. Its totient is φ = 15225611500.

The previous prime is 30451222973. The next prime is 30451223003. The reversal of 30451223002 is 20032215403.

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

It can be written as a sum of positive squares in only one way, i.e., 23280351241 + 7170871761 = 152579^2 + 84681^2 .

It is not an unprimeable number, because it can be changed into a prime (30451223003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7612805749 + ... + 7612805752.

Almost surely, 2^30451223002 is an apocalyptic number.

30451223002 is a deficient number, since it is larger than the sum of its proper divisors (15225611504).

30451223002 is a wasteful number, since it uses less digits than its factorization.

30451223002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225611503.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 30451223002 its reverse (20032215403), we get a palindrome (50483438405).

The spelling of 30451223002 in words is "thirty billion, four hundred fifty-one million, two hundred twenty-three thousand, two".