1144020131 has 4 divisors (see below), whose sum is σ = 1174939632. Its totient is φ = 1113100632.

The previous prime is 1144020113. The next prime is 1144020181. The reversal of 1144020131 is 1310204411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310204411 = 397 ⋅3300263.

It is a cyclic number.

It is not a de Polignac number, because 1144020131 - 2¹⁴ = 1144003747 is a prime.

It is a super-2 number, since 2×1144020131² = 2617564120266514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144020181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15459695 + ... + 15459768.

It is an arithmetic number, because the mean of its divisors is an integer number (293734908).

Almost surely, 2^1144020131 is an apocalyptic number.

1144020131 is a deficient number, since it is larger than the sum of its proper divisors (30919501).

1144020131 is an equidigital number, since it uses as much as digits as its factorization.

1144020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30919500.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1144020131 is about 33823.3666420124. The cubic root of 1144020131 is about 1045.8704410164.

Adding to 1144020131 its reverse (1310204411), we get a palindrome (2454224542).

The spelling of 1144020131 in words is "one billion, one hundred forty-four million, twenty thousand, one hundred thirty-one".