1011125465 has 16 divisors (see below), whose sum is σ = 1397278080. Its totient is φ = 688047360.

The previous prime is 1011125431. The next prime is 1011125483. The reversal of 1011125465 is 5645211101.

It is not a de Polignac number, because 1011125465 - 2⁸ = 1011125209 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, 105680 + ... + 114849.

It is an arithmetic number, because the mean of its divisors is an integer number (87329880).

Almost surely, 2^1011125465 is an apocalyptic number.

It is an amenable number.

1011125465 is a deficient number, since it is larger than the sum of its proper divisors (386152615).

1011125465 is a wasteful number, since it uses less digits than its factorization.

1011125465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220672.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1011125465 is about 31798.1990842249. The cubic root of 1011125465 is about 1003.6948198263.

Adding to 1011125465 its reverse (5645211101), we get a palindrome (6656336566).

The spelling of 1011125465 in words is "one billion, eleven million, one hundred twenty-five thousand, four hundred sixty-five".