1051078213 has 2 divisors, whose sum is σ = 1051078214. Its totient is φ = 1051078212.

The previous prime is 1051078211. The next prime is 1051078241. The reversal of 1051078213 is 3128701501.

It is an a-pointer prime, because the next prime (1051078241) can be obtained adding 1051078213 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634183489 + 416894724 = 25183^2 + 20418^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051078213 - 2¹ = 1051078211 is a prime.

It is a super-2 number, since 2×1051078213² = 2209530819686546738, which contains 22 as substring.

Together with 1051078211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051078211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525539106 + 525539107.

It is an arithmetic number, because the mean of its divisors is an integer number (525539107).

Almost surely, 2^1051078213 is an apocalyptic number.

It is an amenable number.

1051078213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051078213 is an equidigital number, since it uses as much as digits as its factorization.

1051078213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1051078213 is about 32420.3364109628. The cubic root of 1051078213 is about 1016.7441399470.

Adding to 1051078213 its reverse (3128701501), we get a palindrome (4179779714).

The spelling of 1051078213 in words is "one billion, fifty-one million, seventy-eight thousand, two hundred thirteen".