120021203402 has 32 divisors (see below), whose sum is σ = 183255201360. Its totient is φ = 58943531520.

The previous prime is 120021203399. The next prime is 120021203437. The reversal of 120021203402 is 204302120021.

It can be written as a sum of positive squares in 8 ways, for example, as 34909559281 + 85111644121 = 186841^2 + 291739^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41257124 + ... + 41260032.

Almost surely, 2^120021203402 is an apocalyptic number.

120021203402 is a deficient number, since it is larger than the sum of its proper divisors (63233997958).

120021203402 is a wasteful number, since it uses less digits than its factorization.

120021203402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 120021203402 its reverse (204302120021), we get a palindrome (324323323423).

The spelling of 120021203402 in words is "one hundred twenty billion, twenty-one million, two hundred three thousand, four hundred two".