1144213031 has 8 divisors (see below), whose sum is σ = 1233289344. Its totient is φ = 1055288160.

The previous prime is 1144212989. The next prime is 1144213043. The reversal of 1144213031 is 1303124411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144213031 - 2⁶ = 1144212967 is a prime.

It is a super-3 number, since 3×1144213031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144212994 and 1144213012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144213831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21911 + ... + 52616.

It is an arithmetic number, because the mean of its divisors is an integer number (154161168).

Almost surely, 2^1144213031 is an apocalyptic number.

1144213031 is a deficient number, since it is larger than the sum of its proper divisors (89076313).

1144213031 is a wasteful number, since it uses less digits than its factorization.

1144213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75721.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1144213031 is about 33826.2181007573. The cubic root of 1144213031 is about 1045.9292211795.

Adding to 1144213031 its reverse (1303124411), we get a palindrome (2447337442).

The spelling of 1144213031 in words is "one billion, one hundred forty-four million, two hundred thirteen thousand, thirty-one".