102020111102002 has 4 divisors (see below), whose sum is σ = 153030166653006. Its totient is φ = 51010055551000.

The previous prime is 102020111101919. The next prime is 102020111102009. The reversal of 102020111102002 is 200201111020201.

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., 100327247289801 + 1692863812201 = 10016349^2 + 1301101^2 .

It is not an unprimeable number, because it can be changed into a prime (102020111102009) by changing a digit.

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 as a sum of consecutive naturals, namely, 25505027775499 + ... + 25505027775502.

Almost surely, 2^{102020111102002} is an apocalyptic number.

102020111102002 is a deficient number, since it is larger than the sum of its proper divisors (51010055551004).

102020111102002 is an equidigital number, since it uses as much as digits as its factorization.

102020111102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010055551003.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102020111102002 its reverse (200201111020201), we get a palindrome (302221222122203).

The spelling of 102020111102002 in words is "one hundred two trillion, twenty billion, one hundred eleven million, one hundred two thousand, two".