121020023002 has 4 divisors (see below), whose sum is σ = 181530034506. Its totient is φ = 60510011500.

The previous prime is 121020022999. The next prime is 121020023053. The reversal of 121020023002 is 200320020121.

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., 89772743641 + 31247279361 = 299621^2 + 176769^2 .

It is an unprimeable number.

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, 30255005749 + ... + 30255005752.

Almost surely, 2^121020023002 is an apocalyptic number.

121020023002 is a deficient number, since it is larger than the sum of its proper divisors (60510011504).

121020023002 is an equidigital number, since it uses as much as digits as its factorization.

121020023002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60510011503.

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

Adding to 121020023002 its reverse (200320020121), we get a palindrome (321340043123).

The spelling of 121020023002 in words is "one hundred twenty-one billion, twenty million, twenty-three thousand, two".