1675721101231 has 8 divisors (see below), whose sum is σ = 1677362462720. Its totient is φ = 1674080259768.

The previous prime is 1675721101207. The next prime is 1675721101253. The reversal of 1675721101231 is 1321011275761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1675721101231 is a prime.

It is a super-2 number, since 2×1675721101231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1675721401231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6481810 + ... + 6735376.

It is an arithmetic number, because the mean of its divisors is an integer number (209670307840).

Almost surely, 2^{1675721101231} is an apocalyptic number.

1675721101231 is a deficient number, since it is larger than the sum of its proper divisors (1641361489).

1675721101231 is a wasteful number, since it uses less digits than its factorization.

1675721101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260013.

The product of its (nonzero) digits is 17640, while the sum is 37.

Adding to 1675721101231 its reverse (1321011275761), we get a palindrome (2996732376992).

The spelling of 1675721101231 in words is "one trillion, six hundred seventy-five billion, seven hundred twenty-one million, one hundred one thousand, two hundred thirty-one".