1421001131 has 12 divisors (see below), whose sum is σ = 1615790400. Its totient is φ = 1247270640.

The previous prime is 1421001107. The next prime is 1421001167. The reversal of 1421001131 is 1311001241.

It is not a de Polignac number, because 1421001131 - 2³⁰ = 347259307 is a prime.

It is a super-2 number, since 2×1421001131² = 4038488428606558322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421001181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198971 + ... + 205988.

It is an arithmetic number, because the mean of its divisors is an integer number (134649200).

Almost surely, 2^1421001131 is an apocalyptic number.

1421001131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1421001131 is a deficient number, since it is larger than the sum of its proper divisors (194789269).

1421001131 is a wasteful number, since it uses less digits than its factorization.

1421001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405010 (or 404999 counting only the distinct ones).

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

The square root of 1421001131 is about 37696.1686514691. The cubic root of 1421001131 is about 1124.2549485947.

Adding to 1421001131 its reverse (1311001241), we get a palindrome (2732002372).

The spelling of 1421001131 in words is "one billion, four hundred twenty-one million, one thousand, one hundred thirty-one".