1140121413 has 20 divisors (see below), whose sum is σ = 1720714380. Its totient is φ = 752239872.

The previous prime is 1140121331. The next prime is 1140121453. The reversal of 1140121413 is 3141210411.

It can be written as a sum of positive squares in 2 ways, for example, as 213101604 + 927019809 = 14598^2 + 30447^2 .

It is not a de Polignac number, because 1140121413 - 2²² = 1135927109 is a prime.

It is a super-2 number, since 2×1140121413² = 2599753672762233138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140121453) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64698 + ... + 80411.

It is an arithmetic number, because the mean of its divisors is an integer number (86035719).

Almost surely, 2^1140121413 is an apocalyptic number.

It is an amenable number.

1140121413 is a deficient number, since it is larger than the sum of its proper divisors (580592967).

1140121413 is an equidigital number, since it uses as much as digits as its factorization.

1140121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145218 (or 145209 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1140121413 is about 33765.6839557560. The cubic root of 1140121413 is about 1044.6810112816.

Adding to 1140121413 its reverse (3141210411), we get a palindrome (4281331824).

The spelling of 1140121413 in words is "one billion, one hundred forty million, one hundred twenty-one thousand, four hundred thirteen".