21623125311076 has 12 divisors (see below), whose sum is σ = 38460804857020. Its totient is φ = 10634323923360.

The previous prime is 21623125311037. The next prime is 21623125311089. The reversal of 21623125311076 is 67011352132612.

It can be written as a sum of positive squares in 2 ways, for example, as 12748827302500 + 8874298008576 = 3570550^2 + 2978976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44309682771 + ... + 44309683258.

Almost surely, 2^{21623125311076} is an apocalyptic number.

It is an amenable number.

21623125311076 is a deficient number, since it is larger than the sum of its proper divisors (16837679545944).

21623125311076 is a wasteful number, since it uses less digits than its factorization.

21623125311076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88619366094 (or 88619366092 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

Adding to 21623125311076 its reverse (67011352132612), we get a palindrome (88634477443688).

The spelling of 21623125311076 in words is "twenty-one trillion, six hundred twenty-three billion, one hundred twenty-five million, three hundred eleven thousand, seventy-six".