1257230050111 has 16 divisors (see below), whose sum is σ = 1454782976064. Its totient is φ = 1064233142784.

The previous prime is 1257230050081. The next prime is 1257230050123. The reversal of 1257230050111 is 1110500327521.

It is not a de Polignac number, because 1257230050111 - 2²³ = 1257221661503 is a prime.

It is a super-2 number, since 2×1257230050111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1257230050111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257230050211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2649880 + ... + 3088093.

It is an arithmetic number, because the mean of its divisors is an integer number (90923936004).

Almost surely, 2^{1257230050111} is an apocalyptic number.

1257230050111 is a deficient number, since it is larger than the sum of its proper divisors (197552925953).

1257230050111 is a wasteful number, since it uses less digits than its factorization.

1257230050111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5738370.

The product of its (nonzero) digits is 2100, while the sum is 28.

Adding to 1257230050111 its reverse (1110500327521), we get a palindrome (2367730377632).

The spelling of 1257230050111 in words is "one trillion, two hundred fifty-seven billion, two hundred thirty million, fifty thousand, one hundred eleven".