1101309972 has 24 divisors (see below), whose sum is σ = 2936826816. Its totient is φ = 314659968.

The previous prime is 1101309931. The next prime is 1101309973. The reversal of 1101309972 is 2799031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101309973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6555333 + ... + 6555500.

It is an arithmetic number, because the mean of its divisors is an integer number (122367784).

Almost surely, 2^1101309972 is an apocalyptic number.

1101309972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101309972 is an abundant number, since it is smaller than the sum of its proper divisors (1835516844).

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

1101309972 is a wasteful number, since it uses less digits than its factorization.

1101309972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110847 (or 13110845 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 1101309972 is about 33185.9905984438. The cubic root of 1101309972 is about 1032.6897280649.

The spelling of 1101309972 in words is "one billion, one hundred one million, three hundred nine thousand, nine hundred seventy-two".