1023561930 has 16 divisors (see below), whose sum is σ = 2456548704. Its totient is φ = 272949840.

The previous prime is 1023561919. The next prime is 1023561941. The reversal of 1023561930 is 391653201.

It is an interprime number because it is at equal distance from previous prime (1023561919) and next prime (1023561941).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 34118731 = 1023561930 / (1 + 0 + 2 + 3 + 5 + 6 + 1 + 9 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17059336 + ... + 17059395.

It is an arithmetic number, because the mean of its divisors is an integer number (153534294).

Almost surely, 2^1023561930 is an apocalyptic number.

1023561930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023561930 is an abundant number, since it is smaller than the sum of its proper divisors (1432986774).

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

1023561930 is a wasteful number, since it uses less digits than its factorization.

1023561930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34118741.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1023561930 is about 31993.1544240327. The cubic root of 1023561930 is about 1007.7930867025.

The spelling of 1023561930 in words is "one billion, twenty-three million, five hundred sixty-one thousand, nine hundred thirty".