256030303106 has 4 divisors (see below), whose sum is σ = 384045454662. Its totient is φ = 128015151552.

The previous prime is 256030303103. The next prime is 256030303141. The reversal of 256030303106 is 601303030652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 227632997881 + 28397305225 = 477109^2 + 168515^2 .

It is a super-2 number, since 2×256030303106² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256030303103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64007575775 + ... + 64007575778.

Almost surely, 2^256030303106 is an apocalyptic number.

256030303106 is a deficient number, since it is larger than the sum of its proper divisors (128015151556).

256030303106 is a wasteful number, since it uses less digits than its factorization.

256030303106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128015151555.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 256030303106 its reverse (601303030652), we get a palindrome (857333333758).

The spelling of 256030303106 in words is "two hundred fifty-six billion, thirty million, three hundred three thousand, one hundred six".