1023513970 has 8 divisors (see below), whose sum is σ = 1842325164. Its totient is φ = 409405584.

The previous prime is 1023513941. The next prime is 1023513979. The reversal of 1023513970 is 793153201.

It can be written as a sum of positive squares in 2 ways, for example, as 1009142289 + 14371681 = 31767^2 + 3791^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1023513979) 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, 51175689 + ... + 51175708.

Almost surely, 2^1023513970 is an apocalyptic number.

1023513970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023513970 is a deficient number, since it is larger than the sum of its proper divisors (818811194).

1023513970 is a wasteful number, since it uses less digits than its factorization.

1023513970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102351404.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1023513970 is about 31992.4048799086. The cubic root of 1023513970 is about 1007.7773460782. Note that the first 3 decimals are identical.

The spelling of 1023513970 in words is "one billion, twenty-three million, five hundred thirteen thousand, nine hundred seventy".