1011630923521 has 32 divisors (see below), whose sum is σ = 1080141004800. Its totient is φ = 945768882240.

The previous prime is 1011630923509. The next prime is 1011630923533. The reversal of 1011630923521 is 1253290361101.

It is an interprime number because it is at equal distance from previous prime (1011630923509) and next prime (1011630923533).

It is a cyclic number.

It is not a de Polignac number, because 1011630923521 - 2⁵ = 1011630923489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011630923621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370423726 + ... + 370426456.

It is an arithmetic number, because the mean of its divisors is an integer number (33754406400).

Almost surely, 2^{1011630923521} is an apocalyptic number.

It is an amenable number.

1011630923521 is a deficient number, since it is larger than the sum of its proper divisors (68510081279).

1011630923521 is a wasteful number, since it uses less digits than its factorization.

1011630923521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 1011630923521 in words is "one trillion, eleven billion, six hundred thirty million, nine hundred twenty-three thousand, five hundred twenty-one".