155112311251430 has 16 divisors (see below), whose sum is σ = 300679249503024. Its totient is φ = 57272238000480.

The previous prime is 155112311251427. The next prime is 155112311251439. The reversal of 155112311251430 is 34152113211551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155112311251439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596585812376 + ... + 596585812635.

It is an arithmetic number, because the mean of its divisors is an integer number (18792453093939).

Almost surely, 2^{155112311251430} is an apocalyptic number.

155112311251430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155112311251430 is a deficient number, since it is larger than the sum of its proper divisors (145566938251594).

155112311251430 is a wasteful number, since it uses less digits than its factorization.

155112311251430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193171625031.

The product of its (nonzero) digits is 18000, while the sum is 35.

Adding to 155112311251430 its reverse (34152113211551), we get a palindrome (189264424462981).

The spelling of 155112311251430 in words is "one hundred fifty-five trillion, one hundred twelve billion, three hundred eleven million, two hundred fifty-one thousand, four hundred thirty".