1272627721031 has 8 divisors (see below), whose sum is σ = 1275460078464. Its totient is φ = 1269795822840.

The previous prime is 1272627721019. The next prime is 1272627721063. The reversal of 1272627721031 is 1301277262721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1272627721031 is a prime.

It is a super-2 number, since 2×1272627721031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272627721031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272627721331) 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, 5767976 + ... + 5984546.

It is an arithmetic number, because the mean of its divisors is an integer number (159432509808).

Almost surely, 2^{1272627721031} is an apocalyptic number.

1272627721031 is a deficient number, since it is larger than the sum of its proper divisors (2832357433).

1272627721031 is a wasteful number, since it uses less digits than its factorization.

1272627721031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229621.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 1272627721031 in words is "one trillion, two hundred seventy-two billion, six hundred twenty-seven million, seven hundred twenty-one thousand, thirty-one".