7420720611111 has 8 divisors (see below), whose sum is σ = 9894319070064. Its totient is φ = 4947134613120.

The previous prime is 7420720611079. The next prime is 7420720611127. The reversal of 7420720611111 is 1111160270247.

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

It is not a de Polignac number, because 7420720611111 - 2⁵ = 7420720611079 is a prime.

It is a super-2 number, since 2×7420720611111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420720611611) 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, 1623676 + ... + 4180641.

It is an arithmetic number, because the mean of its divisors is an integer number (1236789883758).

Almost surely, 2^{7420720611111} is an apocalyptic number.

7420720611111 is a deficient number, since it is larger than the sum of its proper divisors (2473598458953).

7420720611111 is a wasteful number, since it uses less digits than its factorization.

7420720611111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230481.

The product of its (nonzero) digits is 4704, while the sum is 33.

Adding to 7420720611111 its reverse (1111160270247), we get a palindrome (8531880881358).

The spelling of 7420720611111 in words is "seven trillion, four hundred twenty billion, seven hundred twenty million, six hundred eleven thousand, one hundred eleven".