102311034421 has 2 divisors, whose sum is σ = 102311034422. Its totient is φ = 102311034420.

The previous prime is 102311034407. The next prime is 102311034443. The reversal of 102311034421 is 124430113201.

It is an a-pointer prime, because the next prime (102311034443) can be obtained adding 102311034421 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84340291396 + 17970743025 = 290414^2 + 134055^2 .

It is a cyclic number.

It is not a de Polignac number, because 102311034421 - 2²⁹ = 101774163509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102311034392 and 102311034401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102311034521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51155517210 + 51155517211.

It is an arithmetic number, because the mean of its divisors is an integer number (51155517211).

Almost surely, 2^102311034421 is an apocalyptic number.

It is an amenable number.

102311034421 is a deficient number, since it is larger than the sum of its proper divisors (1).

102311034421 is an equidigital number, since it uses as much as digits as its factorization.

102311034421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 102311034421 its reverse (124430113201), we get a palindrome (226741147622).

The spelling of 102311034421 in words is "one hundred two billion, three hundred eleven million, thirty-four thousand, four hundred twenty-one".