1023501132321 has 16 divisors (see below), whose sum is σ = 1387858326720. Its totient is φ = 670740016320.

The previous prime is 1023501132271. The next prime is 1023501132383. The reversal of 1023501132321 is 1232311053201.

It is a happy number.

It is not a de Polignac number, because 1023501132321 - 2¹¹ = 1023501130273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023501132291 and 1023501132300.

It is not an unprimeable number, because it can be changed into a prime (1023501132821) 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, 4435131 + ... + 4660191.

It is an arithmetic number, because the mean of its divisors is an integer number (86741145420).

Almost surely, 2^{1023501132321} is an apocalyptic number.

It is an amenable number.

1023501132321 is a deficient number, since it is larger than the sum of its proper divisors (364357194399).

1023501132321 is a wasteful number, since it uses less digits than its factorization.

1023501132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250816.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 1023501132321 its reverse (1232311053201), we get a palindrome (2255812185522).

The spelling of 1023501132321 in words is "one trillion, twenty-three billion, five hundred one million, one hundred thirty-two thousand, three hundred twenty-one".