1101204972 has 72 divisors (see below), whose sum is σ = 3191715072. Its totient is φ = 313596000.

The previous prime is 1101204911. The next prime is 1101205037. The reversal of 1101204972 is 2794021011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71347 + ... + 85397.

It is an arithmetic number, because the mean of its divisors is an integer number (44329376).

Almost surely, 2^1101204972 is an apocalyptic number.

1101204972 is a gapful number since it is divisible by the number (12) 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 1101204972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595857536).

1101204972 is an abundant number, since it is smaller than the sum of its proper divisors (2090510100).

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

1101204972 is a wasteful number, since it uses less digits than its factorization.

1101204972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14379 (or 14374 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1101204972 is about 33184.4085678802. The cubic root of 1101204972 is about 1032.6569077962.

Adding to 1101204972 its reverse (2794021011), we get a palindrome (3895225983).

The spelling of 1101204972 in words is "one billion, one hundred one million, two hundred four thousand, nine hundred seventy-two".