1001213450 has 24 divisors (see below), whose sum is σ = 1863091692. Its totient is φ = 400305920.

The previous prime is 1001213449. The next prime is 1001213461. The reversal of 1001213450 is 543121001.

It can be written as a sum of positive squares in 6 ways, for example, as 139027681 + 862185769 = 11791^2 + 29363^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205442 + ... + 210258.

Almost surely, 2^1001213450 is an apocalyptic number.

1001213450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001213450 is a deficient number, since it is larger than the sum of its proper divisors (861878242).

1001213450 is a wasteful number, since it uses less digits than its factorization.

1001213450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8986 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1001213450 is about 31641.9571139334. The cubic root of 1001213450 is about 1000.4043198368.

Adding to 1001213450 its reverse (543121001), we get a palindrome (1544334451).

The spelling of 1001213450 in words is "one billion, one million, two hundred thirteen thousand, four hundred fifty".