1203122002 has 4 divisors (see below), whose sum is σ = 1804683006. Its totient is φ = 601561000.

The previous prime is 1203121981. The next prime is 1203122003. The reversal of 1203122002 is 2002213021.

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., 762919641 + 440202361 = 27621^2 + 20981^2 .

It is not an unprimeable number, because it can be changed into a prime (1203122003) 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, 300780499 + ... + 300780502.

Almost surely, 2^1203122002 is an apocalyptic number.

1203122002 is a deficient number, since it is larger than the sum of its proper divisors (601561004).

1203122002 is an equidigital number, since it uses as much as digits as its factorization.

1203122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601561003.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1203122002 is about 34686.0490975839. The cubic root of 1203122002 is about 1063.5793328526.

Adding to 1203122002 its reverse (2002213021), we get a palindrome (3205335023).

The spelling of 1203122002 in words is "one billion, two hundred three million, one hundred twenty-two thousand, two".