1680101231 has 4 divisors (see below), whose sum is σ = 1682764464. Its totient is φ = 1677438000.

The previous prime is 1680101191. The next prime is 1680101251. The reversal of 1680101231 is 1321010861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321010861 = 23677 ⋅55793.

It is a cyclic number.

It is not a de Polignac number, because 1680101231 - 2¹⁰ = 1680100207 is a prime.

It is a super-2 number, since 2×1680101231² = 5645480292815430722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1680101197 and 1680101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680101251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330670 + ... + 1331931.

It is an arithmetic number, because the mean of its divisors is an integer number (420691116).

Almost surely, 2^1680101231 is an apocalyptic number.

1680101231 is a deficient number, since it is larger than the sum of its proper divisors (2663233).

1680101231 is an equidigital number, since it uses as much as digits as its factorization.

1680101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663232.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1680101231 is about 40989.0379369899. The cubic root of 1680101231 is about 1188.8082674208.

The spelling of 1680101231 in words is "one billion, six hundred eighty million, one hundred one thousand, two hundred thirty-one".