320561002029 has 16 divisors (see below), whose sum is σ = 438401808000. Its totient is φ = 208267889856.

The previous prime is 320561001991. The next prime is 320561002031. The reversal of 320561002029 is 920200165023.

It is not a de Polignac number, because 320561002029 - 2⁸ = 320561001773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320561001987 and 320561002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320561002429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6741769 + ... + 6789150.

It is an arithmetic number, because the mean of its divisors is an integer number (27400113000).

Almost surely, 2^320561002029 is an apocalyptic number.

It is an amenable number.

320561002029 is a deficient number, since it is larger than the sum of its proper divisors (117840805971).

320561002029 is a wasteful number, since it uses less digits than its factorization.

320561002029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13531124.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 320561002029 in words is "three hundred twenty billion, five hundred sixty-one million, two thousand, twenty-nine".