21263223153030 has 16 divisors (see below), whose sum is σ = 51031735567344. Its totient is φ = 5670192840800.

The previous prime is 21263223152953. The next prime is 21263223153203. The reversal of 21263223153030 is 3035132236212.

It is a junction number, because it is equal to n+sod(n) for n = 21263223152982 and 21263223153000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354387052521 + ... + 354387052580.

It is an arithmetic number, because the mean of its divisors is an integer number (3189483472959).

Almost surely, 2^{21263223153030} is an apocalyptic number.

21263223153030 is an abundant number, since it is smaller than the sum of its proper divisors (29768512414314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21263223153030 is a wasteful number, since it uses less digits than its factorization.

21263223153030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708774105111.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 21263223153030 its reverse (3035132236212), we get a palindrome (24298355389242).

The spelling of 21263223153030 in words is "twenty-one trillion, two hundred sixty-three billion, two hundred twenty-three million, one hundred fifty-three thousand, thirty".