21003001101490 has 16 divisors (see below), whose sum is σ = 37805469585048. Its totient is φ = 8401185417856.

The previous prime is 21003001101431. The next prime is 21003001101491. The reversal of 21003001101490 is 9410110030012.

It can be written as a sum of positive squares in 4 ways, for example, as 17973775723401 + 3029225378089 = 4239549^2 + 1740467^2 .

It is a super-2 number, since 2×21003001101490² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21003001101491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5300934 + ... + 8372926.

Almost surely, 2^{21003001101490} is an apocalyptic number.

21003001101490 is a deficient number, since it is larger than the sum of its proper divisors (16802468483558).

21003001101490 is a wasteful number, since it uses less digits than its factorization.

21003001101490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755693.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 21003001101490 in words is "twenty-one trillion, three billion, one million, one hundred one thousand, four hundred ninety".