1421136503123 has 4 divisors (see below), whose sum is σ = 1459545597840. Its totient is φ = 1382727408408.

The previous prime is 1421136503119. The next prime is 1421136503131. The reversal of 1421136503123 is 3213056311241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1421136503123 - 2² = 1421136503119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421136503123.

It is not an unprimeable number, because it can be changed into a prime (1421136503153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19204547303 + ... + 19204547376.

It is an arithmetic number, because the mean of its divisors is an integer number (364886399460).

Almost surely, 2^{1421136503123} is an apocalyptic number.

1421136503123 is a deficient number, since it is larger than the sum of its proper divisors (38409094717).

1421136503123 is an equidigital number, since it uses as much as digits as its factorization.

1421136503123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38409094716.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 1421136503123 in words is "one trillion, four hundred twenty-one billion, one hundred thirty-six million, five hundred three thousand, one hundred twenty-three".