70311211111111 has 4 divisors (see below), whose sum is σ = 72211514114152. Its totient is φ = 68410908108072.

The previous prime is 70311211111093. The next prime is 70311211111147. The reversal of 70311211111111 is 11111111211307.

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

It is a cyclic number.

It is not a de Polignac number, because 70311211111111 - 2⁷ = 70311211110983 is a prime.

It is a super-2 number, since 2×70311211111111² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

70311211111111 is a modest number, since divided by 11111111 gives 703112 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70371211111111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950151501465 + ... + 950151501538.

It is an arithmetic number, because the mean of its divisors is an integer number (18052878528538).

Almost surely, 2^{70311211111111} is an apocalyptic number.

70311211111111 is a deficient number, since it is larger than the sum of its proper divisors (1900303003041).

70311211111111 is a wasteful number, since it uses less digits than its factorization.

70311211111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900303003040.

The product of its (nonzero) digits is 42, while the sum is 22.

Adding to 70311211111111 its reverse (11111111211307), we get a palindrome (81422322322418).

The spelling of 70311211111111 in words is "seventy trillion, three hundred eleven billion, two hundred eleven million, one hundred eleven thousand, one hundred eleven".