1011238215 has 16 divisors (see below), whose sum is σ = 1742441568. Its totient is φ = 497840256.

The previous prime is 1011238213. The next prime is 1011238247. The reversal of 1011238215 is 5128321101.

It is not a de Polignac number, because 1011238215 - 2¹ = 1011238213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011238213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592724 + ... + 2593113.

It is an arithmetic number, because the mean of its divisors is an integer number (108902598).

Almost surely, 2^1011238215 is an apocalyptic number.

1011238215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1011238215 is a deficient number, since it is larger than the sum of its proper divisors (731203353).

1011238215 is a wasteful number, since it uses less digits than its factorization.

1011238215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185858.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1011238215 is about 31799.9719339499. The cubic root of 1011238215 is about 1003.7321255774.

Adding to 1011238215 its reverse (5128321101), we get a palindrome (6139559316).

The spelling of 1011238215 in words is "one billion, eleven million, two hundred thirty-eight thousand, two hundred fifteen".