1101247488 has 440 divisors, whose sum is σ = 3852028224. Its totient is φ = 309657600.

The previous prime is 1101247487. The next prime is 1101247507. The reversal of 1101247488 is 8847421011.

1101247488 is a `hidden beast` number, since 1 + 101 + 2 + 474 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101247487) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15510493 + ... + 15510563.

Almost surely, 2^1101247488 is an apocalyptic number.

1101247488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101247488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926014112).

1101247488 is an abundant number, since it is smaller than the sum of its proper divisors (2750780736).

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

1101247488 is a wasteful number, since it uses less digits than its factorization.

1101247488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 1101247488 is about 33185.0491637424. The cubic root of 1101247488 is about 1032.6701974432.

Adding to 1101247488 its reverse (8847421011), we get a palindrome (9948668499).

The spelling of 1101247488 in words is "one billion, one hundred one million, two hundred forty-seven thousand, four hundred eighty-eight".