1310101421 has 4 divisors (see below), whose sum is σ = 1312770144. Its totient is φ = 1307432700.

The previous prime is 1310101399. The next prime is 1310101487. The reversal of 1310101421 is 1241010131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1241010131 = 79 ⋅15708989.

It is a cyclic number.

It is not a de Polignac number, because 1310101421 - 2¹⁸ = 1309839277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310101396 and 1310101405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310101021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333625 + ... + 1334606.

It is an arithmetic number, because the mean of its divisors is an integer number (328192536).

Almost surely, 2^1310101421 is an apocalyptic number.

It is an amenable number.

1310101421 is a deficient number, since it is larger than the sum of its proper divisors (2668723).

1310101421 is an equidigital number, since it uses as much as digits as its factorization.

1310101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668722.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1310101421 is about 36195.3231923684. The cubic root of 1310101421 is about 1094.2124181040.

Adding to 1310101421 its reverse (1241010131), we get a palindrome (2551111552).

The spelling of 1310101421 in words is "one billion, three hundred ten million, one hundred one thousand, four hundred twenty-one".