20329253401 has 2 divisors, whose sum is σ = 20329253402. Its totient is φ = 20329253400.

The previous prime is 20329253383. The next prime is 20329253443. The reversal of 20329253401 is 10435292302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14291963401 + 6037290000 = 119549^2 + 77700^2 .

It is a cyclic number.

It is not a de Polignac number, because 20329253401 - 2¹⁵ = 20329220633 is a prime.

It is not a weakly prime, because it can be changed into another prime (20329223401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10164626700 + 10164626701.

It is an arithmetic number, because the mean of its divisors is an integer number (10164626701).

Almost surely, 2^20329253401 is an apocalyptic number.

It is an amenable number.

20329253401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20329253401 is an equidigital number, since it uses as much as digits as its factorization.

20329253401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 20329253401 in words is "twenty billion, three hundred twenty-nine million, two hundred fifty-three thousand, four hundred one".