121503511034 has 16 divisors (see below), whose sum is σ = 184807150080. Its totient is φ = 59901625440.

The previous prime is 121503510923. The next prime is 121503511091. The reversal of 121503511034 is 430115305121.

It is a junction number, because it is equal to n+sod(n) for n = 121503510994 and 121503511012.

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 in 7 ways as a sum of consecutive naturals, for example, 372377 + ... + 617795.

It is an arithmetic number, because the mean of its divisors is an integer number (11550446880).

Almost surely, 2^121503511034 is an apocalyptic number.

121503511034 is a deficient number, since it is larger than the sum of its proper divisors (63303639046).

121503511034 is a wasteful number, since it uses less digits than its factorization.

121503511034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248885.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 121503511034 its reverse (430115305121), we get a palindrome (551618816155).

The spelling of 121503511034 in words is "one hundred twenty-one billion, five hundred three million, five hundred eleven thousand, thirty-four".