101023040 has 28 divisors (see below), whose sum is σ = 240561876. Its totient is φ = 40409088.

The previous prime is 101023007. The next prime is 101023051. The reversal of 101023040 is 40320101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68029504 + 32993536 = 8248^2 + 5744^2 .

It is a super-2 number, since 2×101023040² = 20411309221683200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157529 + ... + 158168.

Almost surely, 2^101023040 is an apocalyptic number.

101023040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101023040 is an abundant number, since it is smaller than the sum of its proper divisors (139538836).

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

101023040 is an equidigital number, since it uses as much as digits as its factorization.

101023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315714 (or 315704 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 101023040 is about 10051.0218385993. The cubic root of 101023040 is about 465.7363598039.

Adding to 101023040 its reverse (40320101), we get a palindrome (141343141).

The spelling of 101023040 in words is "one hundred one million, twenty-three thousand, forty".