70021440311 has 2 divisors, whose sum is σ = 70021440312. Its totient is φ = 70021440310.

The previous prime is 70021440277. The next prime is 70021440317. The reversal of 70021440311 is 11304412007.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70021440311 - 2²² = 70017246007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70021440317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35010720155 + 35010720156.

It is an arithmetic number, because the mean of its divisors is an integer number (35010720156).

Almost surely, 2^70021440311 is an apocalyptic number.

70021440311 is a deficient number, since it is larger than the sum of its proper divisors (1).

70021440311 is an equidigital number, since it uses as much as digits as its factorization.

70021440311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 70021440311 its reverse (11304412007), we get a palindrome (81325852318).

The spelling of 70021440311 in words is "seventy billion, twenty-one million, four hundred forty thousand, three hundred eleven".