1123540700 has 36 divisors (see below), whose sum is σ = 2478065352. Its totient is φ = 442046400.

The previous prime is 1123540697. The next prime is 1123540703. The reversal of 1123540700 is 70453211.

It is an interprime number because it is at equal distance from previous prime (1123540697) and next prime (1123540703).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123540703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85994 + ... + 98193.

Almost surely, 2^1123540700 is an apocalyptic number.

1123540700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123540700 is an abundant number, since it is smaller than the sum of its proper divisors (1354524652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123540700 is a wasteful number, since it uses less digits than its factorization.

1123540700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184262 (or 184255 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1123540700 is about 33519.2586433531. The cubic root of 1123540700 is about 1039.5920182281.

Adding to 1123540700 its reverse (70453211), we get a palindrome (1193993911).

The spelling of 1123540700 in words is "one billion, one hundred twenty-three million, five hundred forty thousand, seven hundred".