21150015432034 has 32 divisors (see below), whose sum is σ = 32055919830000. Its totient is φ = 10464958715904.

The previous prime is 21150015432023. The next prime is 21150015432131. The reversal of 21150015432034 is 43023451005112.

It can be written as a sum of positive squares in 8 ways, for example, as 485690517225 + 20664324914809 = 696915^2 + 4545803^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21150015431987 and 21150015432005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591938682 + ... + 591974410.

Almost surely, 2^{21150015432034} is an apocalyptic number.

21150015432034 is a deficient number, since it is larger than the sum of its proper divisors (10905904397966).

21150015432034 is a wasteful number, since it uses less digits than its factorization.

21150015432034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39142.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 21150015432034 its reverse (43023451005112), we get a palindrome (64173466437146).

The spelling of 21150015432034 in words is "twenty-one trillion, one hundred fifty billion, fifteen million, four hundred thirty-two thousand, thirty-four".