1421101231 has 8 divisors (see below), whose sum is σ = 1562128128. Its totient is φ = 1282047000.

The previous prime is 1421101193. The next prime is 1421101261. The reversal of 1421101231 is 1321011241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421101231 - 2⁷ = 1421101103 is a prime.

It is a super-2 number, since 2×1421101231² = 4039057417499430722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421101261) 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, 491655 + ... + 494536.

It is an arithmetic number, because the mean of its divisors is an integer number (195266016).

Almost surely, 2^1421101231 is an apocalyptic number.

1421101231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1421101231 is a deficient number, since it is larger than the sum of its proper divisors (141026897).

1421101231 is a wasteful number, since it uses less digits than its factorization.

1421101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986333.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1421101231 is about 37697.4963492272. The cubic root of 1421101231 is about 1124.2813467154.

Adding to 1421101231 its reverse (1321011241), we get a palindrome (2742112472).

It can be divided in two parts, 142110 and 1231, that added together give a palindrome (143341).

The spelling of 1421101231 in words is "one billion, four hundred twenty-one million, one hundred one thousand, two hundred thirty-one".