1420100005251 has 8 divisors (see below), whose sum is σ = 1944641448784. Its totient is φ = 921145949280.

The previous prime is 1420100005223. The next prime is 1420100005301. The reversal of 1420100005251 is 1525000010241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1420100005251 - 2⁶ = 1420100005187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420100005351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6396846760 + ... + 6396846981.

It is an arithmetic number, because the mean of its divisors is an integer number (243080181098).

Almost surely, 2^{1420100005251} is an apocalyptic number.

1420100005251 is a deficient number, since it is larger than the sum of its proper divisors (524541443533).

1420100005251 is a wasteful number, since it uses less digits than its factorization.

1420100005251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793693781.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 1420100005251 its reverse (1525000010241), we get a palindrome (2945100015492).

The spelling of 1420100005251 in words is "one trillion, four hundred twenty billion, one hundred million, five thousand, two hundred fifty-one".