1011131421 has 8 divisors (see below), whose sum is σ = 1349349120. Its totient is φ = 673500672.

The previous prime is 1011131411. The next prime is 1011131431. The reversal of 1011131421 is 1241311101.

It is an interprime number because it is at equal distance from previous prime (1011131411) and next prime (1011131431).

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

It is not a de Polignac number, because 1011131421 - 2⁶ = 1011131357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011131421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011131411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142701 + ... + 149618.

It is an arithmetic number, because the mean of its divisors is an integer number (168668640).

Almost surely, 2^1011131421 is an apocalyptic number.

It is an amenable number.

1011131421 is a deficient number, since it is larger than the sum of its proper divisors (338217699).

1011131421 is a wasteful number, since it uses less digits than its factorization.

1011131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293475.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1011131421 is about 31798.2927371895. The cubic root of 1011131421 is about 1003.6967905657.

Adding to 1011131421 its reverse (1241311101), we get a palindrome (2252442522).

The spelling of 1011131421 in words is "one billion, eleven million, one hundred thirty-one thousand, four hundred twenty-one".