121311251622534 has 16 divisors (see below), whose sum is σ = 253171307734272. Its totient is φ = 38678949792648.

The previous prime is 121311251622523. The next prime is 121311251622607. The reversal of 121311251622534 is 435226152113121.

It is a junction number, because it is equal to n+sod(n) for n = 121311251622492 and 121311251622501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439533520234 + ... + 439533520509.

It is an arithmetic number, because the mean of its divisors is an integer number (15823206733392).

Almost surely, 2^{121311251622534} is an apocalyptic number.

121311251622534 is an abundant number, since it is smaller than the sum of its proper divisors (131860056111738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121311251622534 is a wasteful number, since it uses less digits than its factorization.

121311251622534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879067040771.

The product of its digits is 86400, while the sum is 39.

The spelling of 121311251622534 in words is "one hundred twenty-one trillion, three hundred eleven billion, two hundred fifty-one million, six hundred twenty-two thousand, five hundred thirty-four".