210123032102 has 4 divisors (see below), whose sum is σ = 315184548156. Its totient is φ = 105061516050.

The previous prime is 210123032101. The next prime is 210123032111. The reversal of 210123032102 is 201230321012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210123032101) 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, 52530758024 + ... + 52530758027.

It is an arithmetic number, because the mean of its divisors is an integer number (78796137039).

Almost surely, 2^210123032102 is an apocalyptic number.

210123032102 is a deficient number, since it is larger than the sum of its proper divisors (105061516054).

210123032102 is a wasteful number, since it uses less digits than its factorization.

210123032102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105061516053.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210123032102 its reverse (201230321012), we get a palindrome (411353353114).

The spelling of 210123032102 in words is "two hundred ten billion, one hundred twenty-three million, thirty-two thousand, one hundred two".