1272857090101 has 8 divisors (see below), whose sum is σ = 1273702093664. Its totient is φ = 1272012199920.

The previous prime is 1272857090093. The next prime is 1272857090107. The reversal of 1272857090101 is 1010907582721.

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

It is a cyclic number.

It is not a de Polignac number, because 1272857090101 - 2³ = 1272857090093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272857090107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43006030 + ... + 43035616.

It is an arithmetic number, because the mean of its divisors is an integer number (159212761708).

Almost surely, 2^{1272857090101} is an apocalyptic number.

It is an amenable number.

1272857090101 is a deficient number, since it is larger than the sum of its proper divisors (845003563).

1272857090101 is a wasteful number, since it uses less digits than its factorization.

1272857090101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56691.

The product of its (nonzero) digits is 70560, while the sum is 43.

The spelling of 1272857090101 in words is "one trillion, two hundred seventy-two billion, eight hundred fifty-seven million, ninety thousand, one hundred one".