1255342413021 has 16 divisors (see below), whose sum is σ = 1709472799488. Its totient is φ = 819054950400.

The previous prime is 1255342412993. The next prime is 1255342413049. The reversal of 1255342413021 is 1203142435521.

It is an interprime number because it is at equal distance from previous prime (1255342412993) and next prime (1255342413049).

It is not a de Polignac number, because 1255342413021 - 2³⁰ = 1254268671197 is a prime.

It is a super-3 number, since 3×1255342413021³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255342412021) 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, 3518541 + ... + 3858861.

It is an arithmetic number, because the mean of its divisors is an integer number (106842049968).

Almost surely, 2^{1255342413021} is an apocalyptic number.

It is an amenable number.

1255342413021 is a deficient number, since it is larger than the sum of its proper divisors (454130386467).

1255342413021 is a wasteful number, since it uses less digits than its factorization.

1255342413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366532.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1255342413021 its reverse (1203142435521), we get a palindrome (2458484848542).

The spelling of 1255342413021 in words is "one trillion, two hundred fifty-five billion, three hundred forty-two million, four hundred thirteen thousand, twenty-one".