70163234021 has 2 divisors, whose sum is σ = 70163234022. Its totient is φ = 70163234020.

The previous prime is 70163233981. The next prime is 70163234059. The reversal of 70163234021 is 12043236107.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61956685921 + 8206548100 = 248911^2 + 90590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70163234021 is a prime.

It is a super-2 number, since 2×70163234021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70163234521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35081617010 + 35081617011.

It is an arithmetic number, because the mean of its divisors is an integer number (35081617011).

Almost surely, 2^70163234021 is an apocalyptic number.

It is an amenable number.

70163234021 is a deficient number, since it is larger than the sum of its proper divisors (1).

70163234021 is an equidigital number, since it uses as much as digits as its factorization.

70163234021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 70163234021 in words is "seventy billion, one hundred sixty-three million, two hundred thirty-four thousand, twenty-one".