1255031300042 has 32 divisors (see below), whose sum is σ = 2082999660672. Its totient is φ = 563360422464.

The previous prime is 1255031300021. The next prime is 1255031300051. The reversal of 1255031300042 is 2400031305521.

It is a happy number.

It is a super-2 number, since 2×1255031300042² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1255031299984 and 1255031300020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2108843 + ... + 2637665.

It is an arithmetic number, because the mean of its divisors is an integer number (65093739396).

Almost surely, 2^{1255031300042} is an apocalyptic number.

1255031300042 is a deficient number, since it is larger than the sum of its proper divisors (827968360630).

1255031300042 is a wasteful number, since it uses less digits than its factorization.

1255031300042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531342.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 1255031300042 its reverse (2400031305521), we get a palindrome (3655062605563).

The spelling of 1255031300042 in words is "one trillion, two hundred fifty-five billion, thirty-one million, three hundred thousand, forty-two".