102121230020111 has 8 divisors (see below), whose sum is σ = 102919911900624. Its totient is φ = 101323320189760.

The previous prime is 102121230020083. The next prime is 102121230020141. The reversal of 102121230020111 is 111020032121201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102121230020111 is a prime.

It is a super-2 number, since 2×102121230020111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102121230020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121230020141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192746960 + ... + 193276053.

It is an arithmetic number, because the mean of its divisors is an integer number (12864988987578).

Almost surely, 2^{102121230020111} is an apocalyptic number.

102121230020111 is a deficient number, since it is larger than the sum of its proper divisors (798681880513).

102121230020111 is a wasteful number, since it uses less digits than its factorization.

102121230020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386025081.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 102121230020111 its reverse (111020032121201), we get a palindrome (213141262141312).

The spelling of 102121230020111 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred thirty million, twenty thousand, one hundred eleven".