21623535214310 has 128 divisors (see below), whose sum is σ = 43043257958400. Its totient is φ = 7793746329600.

The previous prime is 21623535214291. The next prime is 21623535214361. The reversal of 21623535214310 is 1341253532612.

It is a super-2 number, since 2×21623535214310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131173799 + ... + 131338541.

It is an arithmetic number, because the mean of its divisors is an integer number (336275452800).

Almost surely, 2^{21623535214310} is an apocalyptic number.

21623535214310 is a deficient number, since it is larger than the sum of its proper divisors (21419722744090).

21623535214310 is a wasteful number, since it uses less digits than its factorization.

21623535214310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165294.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 21623535214310 its reverse (1341253532612), we get a palindrome (22964788746922).

The spelling of 21623535214310 in words is "twenty-one trillion, six hundred twenty-three billion, five hundred thirty-five million, two hundred fourteen thousand, three hundred ten".