1143212315 has 16 divisors (see below), whose sum is σ = 1568778240. Its totient is φ = 783444960.

The previous prime is 1143212297. The next prime is 1143212321. The reversal of 1143212315 is 5132123411.

It is not a de Polignac number, because 1143212315 - 2¹⁶ = 1143146779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55166 + ... + 73004.

It is an arithmetic number, because the mean of its divisors is an integer number (98048640).

Almost surely, 2^1143212315 is an apocalyptic number.

1143212315 is a deficient number, since it is larger than the sum of its proper divisors (425565925).

1143212315 is a wasteful number, since it uses less digits than its factorization.

1143212315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19682.

The product of its digits is 720, while the sum is 23.

The square root of 1143212315 is about 33811.4228479075. The cubic root of 1143212315 is about 1045.6242128858.

Adding to 1143212315 its reverse (5132123411), we get a palindrome (6275335726).

The spelling of 1143212315 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, three hundred fifteen".