1012231515 has 32 divisors (see below), whose sum is σ = 1679616000. Its totient is φ = 519935360.

The previous prime is 1012231483. The next prime is 1012231537. The reversal of 1012231515 is 5151322101.

It is not a de Polignac number, because 1012231515 - 2⁵ = 1012231483 is a prime.

It is a super-2 number, since 2×1012231515² = 2049225279918390450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012231491 and 1012231500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184786 + ... + 190184.

It is an arithmetic number, because the mean of its divisors is an integer number (52488000).

Almost surely, 2^1012231515 is an apocalyptic number.

1012231515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1012231515 is a deficient number, since it is larger than the sum of its proper divisors (667384485).

1012231515 is a wasteful number, since it uses less digits than its factorization.

1012231515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1012231515 is about 31815.5860389212. The cubic root of 1012231515 is about 1004.0606603852.

Adding to 1012231515 its reverse (5151322101), we get a palindrome (6163553616).

The spelling of 1012231515 in words is "one billion, twelve million, two hundred thirty-one thousand, five hundred fifteen".