1011457923 has 16 divisors (see below), whose sum is σ = 1546141440. Its totient is φ = 576148896.

The previous prime is 1011457921. The next prime is 1011457927. The reversal of 1011457923 is 3297541101.

It is not a de Polignac number, because 1011457923 - 2¹ = 1011457921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011457921) 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, 69313 + ... + 82626.

It is an arithmetic number, because the mean of its divisors is an integer number (96633840).

Almost surely, 2^1011457923 is an apocalyptic number.

1011457923 is a deficient number, since it is larger than the sum of its proper divisors (534683517).

1011457923 is a wasteful number, since it uses less digits than its factorization.

1011457923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152266.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1011457923 is about 31803.4262776827. The cubic root of 1011457923 is about 1003.8048127067.

The spelling of 1011457923 in words is "one billion, eleven million, four hundred fifty-seven thousand, nine hundred twenty-three".