1421723101356 has 72 divisors (see below), whose sum is σ = 3805696046880. Its totient is φ = 445972640256.

The previous prime is 1421723101313. The next prime is 1421723101367. The reversal of 1421723101356 is 6531013271241.

1421723101356 is a `hidden beast` number, since 1 + 42 + 172 + 310 + 135 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1421723101356.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4673265 + ... + 4968183.

It is an arithmetic number, because the mean of its divisors is an integer number (52856889540).

Almost surely, 2^{1421723101356} is an apocalyptic number.

It is an amenable number.

1421723101356 is an abundant number, since it is smaller than the sum of its proper divisors (2383972945524).

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

1421723101356 is a wasteful number, since it uses less digits than its factorization.

1421723101356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302823 (or 302818 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 1421723101356 its reverse (6531013271241), we get a palindrome (7952736372597).

The spelling of 1421723101356 in words is "one trillion, four hundred twenty-one billion, seven hundred twenty-three million, one hundred one thousand, three hundred fifty-six".