355121042312 has 8 divisors (see below), whose sum is σ = 665851954350. Its totient is φ = 177560521152.

The previous prime is 355121042299. The next prime is 355121042321. The reversal of 355121042312 is 213240121553.

It can be written as a sum of positive squares in only one way, i.e., 230375040676 + 124746001636 = 479974^2 + 353194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×355121042312² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22195065137 + ... + 22195065152.

Almost surely, 2^355121042312 is an apocalyptic number.

It is an amenable number.

355121042312 is a deficient number, since it is larger than the sum of its proper divisors (310730912038).

355121042312 is a wasteful number, since it uses less digits than its factorization.

355121042312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44390130295 (or 44390130291 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 355121042312 its reverse (213240121553), we get a palindrome (568361163865).

The spelling of 355121042312 in words is "three hundred fifty-five billion, one hundred twenty-one million, forty-two thousand, three hundred twelve".