1021230120102 has 16 divisors (see below), whose sum is σ = 2162604960432. Its totient is φ = 320385920000.

The previous prime is 1021230120077. The next prime is 1021230120181. The reversal of 1021230120102 is 2010210321201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5006029899 + ... + 5006030102.

It is an arithmetic number, because the mean of its divisors is an integer number (135162810027).

Almost surely, 2^{1021230120102} is an apocalyptic number.

1021230120102 is an abundant number, since it is smaller than the sum of its proper divisors (1141374840330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021230120102 is a wasteful number, since it uses less digits than its factorization.

1021230120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012060023.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1021230120102 its reverse (2010210321201), we get a palindrome (3031440441303).

The spelling of 1021230120102 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred twenty thousand, one hundred two".