21032451144435 has 32 divisors (see below), whose sum is σ = 36644560992000. Its totient is φ = 10260477069696.

The previous prime is 21032451144403. The next prime is 21032451144457. The reversal of 21032451144435 is 53444115423012.

It is not a de Polignac number, because 21032451144435 - 2⁵ = 21032451144403 is a prime.

It is a super-2 number, since 2×21032451144435² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21032451144393 and 21032451144402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1272372325 + ... + 1272388854.

It is an arithmetic number, because the mean of its divisors is an integer number (1145142531000).

Almost surely, 2^{21032451144435} is an apocalyptic number.

21032451144435 is a deficient number, since it is larger than the sum of its proper divisors (15612109847565).

21032451144435 is a wasteful number, since it uses less digits than its factorization.

21032451144435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544761235.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 21032451144435 its reverse (53444115423012), we get a palindrome (74476566567447).

The spelling of 21032451144435 in words is "twenty-one trillion, thirty-two billion, four hundred fifty-one million, one hundred forty-four thousand, four hundred thirty-five".