2001232011329 has 2 divisors, whose sum is σ = 2001232011330. Its totient is φ = 2001232011328.

The previous prime is 2001232011307. The next prime is 2001232011367. The reversal of 2001232011329 is 9231102321002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1896272210704 + 104959800625 = 1377052^2 + 323975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001232011329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001232011298 and 2001232011307.

It is not a weakly prime, because it can be changed into another prime (2001232011379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000616005664 + 1000616005665.

It is an arithmetic number, because the mean of its divisors is an integer number (1000616005665).

Almost surely, 2^{2001232011329} is an apocalyptic number.

It is an amenable number.

2001232011329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001232011329 is an equidigital number, since it uses as much as digits as its factorization.

2001232011329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 2001232011329 in words is "two trillion, one billion, two hundred thirty-two million, eleven thousand, three hundred twenty-nine".