11321421321629 has 2 divisors, whose sum is σ = 11321421321630. Its totient is φ = 11321421321628.

The previous prime is 11321421321601. The next prime is 11321421321673. The reversal of 11321421321629 is 92612312412311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8557438596100 + 2763982725529 = 2925310^2 + 1662523^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321421321629 - 2⁸ = 11321421321373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11321421321592 and 11321421321601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321421321029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660710660814 + 5660710660815.

It is an arithmetic number, because the mean of its divisors is an integer number (5660710660815).

Almost surely, 2^{11321421321629} is an apocalyptic number.

It is an amenable number.

11321421321629 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321421321629 is an equidigital number, since it uses as much as digits as its factorization.

11321421321629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The spelling of 11321421321629 in words is "eleven trillion, three hundred twenty-one billion, four hundred twenty-one million, three hundred twenty-one thousand, six hundred twenty-nine".