1101009973 has 4 divisors (see below), whose sum is σ = 1258297120. Its totient is φ = 943722828.

The previous prime is 1101009971. The next prime is 1101009979. The reversal of 1101009973 is 3799001011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1101009973 - 2¹ = 1101009971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101009971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78643563 + ... + 78643576.

It is an arithmetic number, because the mean of its divisors is an integer number (314574280).

Almost surely, 2^1101009973 is an apocalyptic number.

It is an amenable number.

1101009973 is a deficient number, since it is larger than the sum of its proper divisors (157287147).

1101009973 is an equidigital number, since it uses as much as digits as its factorization.

1101009973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157287146.

The product of its (nonzero) digits is 1701, while the sum is 31.

The square root of 1101009973 is about 33181.4703260721. The cubic root of 1101009973 is about 1032.5959506458.

The spelling of 1101009973 in words is "one billion, one hundred one million, nine thousand, nine hundred seventy-three".