1140100421 has 2 divisors, whose sum is σ = 1140100422. Its totient is φ = 1140100420.

The previous prime is 1140100411. The next prime is 1140100439. The reversal of 1140100421 is 1240010411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1112956321 + 27144100 = 33361^2 + 5210^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140100421 - 2²² = 1135906117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1140100396 and 1140100405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140100411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570050210 + 570050211.

It is an arithmetic number, because the mean of its divisors is an integer number (570050211).

Almost surely, 2^1140100421 is an apocalyptic number.

It is an amenable number.

1140100421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140100421 is an equidigital number, since it uses as much as digits as its factorization.

1140100421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1140100421 is about 33765.3731061868. The cubic root of 1140100421 is about 1044.6745996608.

Adding to 1140100421 its reverse (1240010411), we get a palindrome (2380110832).

The spelling of 1140100421 in words is "one billion, one hundred forty million, one hundred thousand, four hundred twenty-one".