70123313 has 8 divisors (see below), whose sum is σ = 76070568. Its totient is φ = 64255104.

The previous prime is 70123309. The next prime is 70123349. The reversal of 70123313 is 31332107.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20322064 + 49801249 = 4508^2 + 7057^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70123313 - 2² = 70123309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70123373) 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, 17906 + ... + 21467.

It is an arithmetic number, because the mean of its divisors is an integer number (9508821).

Almost surely, 2^70123313 is an apocalyptic number.

It is an amenable number.

70123313 is a deficient number, since it is larger than the sum of its proper divisors (5947255).

70123313 is a wasteful number, since it uses less digits than its factorization.

70123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39523.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 70123313 is about 8373.9663839784. The cubic root of 70123313 is about 412.3703918493.

The spelling of 70123313 in words is "seventy million, one hundred twenty-three thousand, three hundred thirteen".