70331011 has 4 divisors (see below), whose sum is σ = 70494624. Its totient is φ = 70167400.

The previous prime is 70330991. The next prime is 70331017. The reversal of 70331011 is 11013307.

It is a happy number.

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 70331011 - 2²¹ = 68233859 is a prime.

It is a super-2 number, since 2×70331011² = 9892902216564242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70331017) 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, 81160 + ... + 82021.

It is an arithmetic number, because the mean of its divisors is an integer number (17623656).

Almost surely, 2^70331011 is an apocalyptic number.

70331011 is a deficient number, since it is larger than the sum of its proper divisors (163613).

70331011 is a wasteful number, since it uses less digits than its factorization.

70331011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163612.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 70331011 is about 8386.3586257684. The cubic root of 70331011 is about 412.7771233635. Note that the first 3 decimals are identical.

Adding to 70331011 its reverse (11013307), we get a palindrome (81344318).

The spelling of 70331011 in words is "seventy million, three hundred thirty-one thousand, eleven".