1107056021 has 8 divisors (see below), whose sum is σ = 1142373024. Its totient is φ = 1072023120.

The previous prime is 1107056017. The next prime is 1107056029. The reversal of 1107056021 is 1206507011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1107056021 - 2² = 1107056017 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 (1107056029) 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, 63095 + ... + 78708.

It is an arithmetic number, because the mean of its divisors is an integer number (142796628).

Almost surely, 2^1107056021 is an apocalyptic number.

It is an amenable number.

1107056021 is a deficient number, since it is larger than the sum of its proper divisors (35317003).

1107056021 is a wasteful number, since it uses less digits than its factorization.

1107056021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142051.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1107056021 is about 33272.4513824876. The cubic root of 1107056021 is about 1034.4826219178.

The spelling of 1107056021 in words is "one billion, one hundred seven million, fifty-six thousand, twenty-one".