121231435234552 has 16 divisors (see below), whose sum is σ = 228301556531400. Its totient is φ = 60351020159520.

The previous prime is 121231435234523. The next prime is 121231435234571. The reversal of 121231435234552 is 255432534132121.

It is a super-2 number, since 2×121231435234552² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121231435234499 and 121231435234508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33087180274 + ... + 33087183937.

Almost surely, 2^{121231435234552} is an apocalyptic number.

It is an amenable number.

121231435234552 is a deficient number, since it is larger than the sum of its proper divisors (107070121296848).

121231435234552 is a wasteful number, since it uses less digits than its factorization.

121231435234552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66174364446 (or 66174364442 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

Adding to 121231435234552 its reverse (255432534132121), we get a palindrome (376663969366673).

The spelling of 121231435234552 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, four hundred thirty-five million, two hundred thirty-four thousand, five hundred fifty-two".