102121023311 has 2 divisors, whose sum is σ = 102121023312. Its totient is φ = 102121023310.

The previous prime is 102121023307. The next prime is 102121023337. The reversal of 102121023311 is 113320121201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102121023311 - 2² = 102121023307 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102121023311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102121023911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060511655 + 51060511656.

It is an arithmetic number, because the mean of its divisors is an integer number (51060511656).

Almost surely, 2^102121023311 is an apocalyptic number.

102121023311 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121023311 is an equidigital number, since it uses as much as digits as its factorization.

102121023311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102121023311 its reverse (113320121201), we get a palindrome (215441144512).

The spelling of 102121023311 in words is "one hundred two billion, one hundred twenty-one million, twenty-three thousand, three hundred eleven".