201421022003134 has 4 divisors (see below), whose sum is σ = 302131533004704. Its totient is φ = 100710511001566.

The previous prime is 201421022003059. The next prime is 201421022003137. The reversal of 201421022003134 is 431300220124102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201421022003099 and 201421022003108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201421022003137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50355255500782 + ... + 50355255500785.

It is an arithmetic number, because the mean of its divisors is an integer number (75532883251176).

Almost surely, 2^{201421022003134} is an apocalyptic number.

201421022003134 is a deficient number, since it is larger than the sum of its proper divisors (100710511001570).

201421022003134 is a wasteful number, since it uses less digits than its factorization.

201421022003134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100710511001569.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 201421022003134 its reverse (431300220124102), we get a palindrome (632721242127236).

The spelling of 201421022003134 in words is "two hundred one trillion, four hundred twenty-one billion, twenty-two million, three thousand, one hundred thirty-four".