1001521010 has 32 divisors (see below), whose sum is σ = 2066159232. Its totient is φ = 342397440.

The previous prime is 1001521009. The next prime is 1001521013. The reversal of 1001521010 is 101251001.

It is a junction number, because it is equal to n+sod(n) for n = 1001520982 and 1001521000.

It is not an unprimeable number, because it can be changed into a prime (1001521013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4445 + ... + 44975.

It is an arithmetic number, because the mean of its divisors is an integer number (64567476).

Almost surely, 2^1001521010 is an apocalyptic number.

1001521010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001521010 is an abundant number, since it is smaller than the sum of its proper divisors (1064638222).

1001521010 is a wasteful number, since it uses less digits than its factorization.

1001521010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40898.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 1001521010 is about 31646.8167435526. The cubic root of 1001521010 is about 1000.5067464979.

Adding to 1001521010 its reverse (101251001), we get a palindrome (1102772011).

The spelling of 1001521010 in words is "one billion, one million, five hundred twenty-one thousand, ten".