70123321211 has 4 divisors (see below), whose sum is σ = 72541366800. Its totient is φ = 67705275624.

The previous prime is 70123321201. The next prime is 70123321231. The reversal of 70123321211 is 11212332107.

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 70123321211 - 2¹⁸ = 70123059067 is a prime.

It is a super-2 number, since 2×70123321211² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70123321201) 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, 1209022751 + ... + 1209022808.

It is an arithmetic number, because the mean of its divisors is an integer number (18135341700).

Almost surely, 2^70123321211 is an apocalyptic number.

70123321211 is a deficient number, since it is larger than the sum of its proper divisors (2418045589).

70123321211 is a wasteful number, since it uses less digits than its factorization.

70123321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418045588.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 70123321211 its reverse (11212332107), we get a palindrome (81335653318).

The spelling of 70123321211 in words is "seventy billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred eleven".