121525140410 has 32 divisors (see below), whose sum is σ = 219342686400. Its totient is φ = 48477479040.

The previous prime is 121525140409. The next prime is 121525140427. The reversal of 121525140410 is 14041525121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121525140410.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5579321 + ... + 5601059.

It is an arithmetic number, because the mean of its divisors is an integer number (6854458950).

Almost surely, 2^121525140410 is an apocalyptic number.

121525140410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121525140410 is a deficient number, since it is larger than the sum of its proper divisors (97817545990).

121525140410 is a wasteful number, since it uses less digits than its factorization.

121525140410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23246.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 121525140410 its reverse (14041525121), we get a palindrome (135566665531).

The spelling of 121525140410 in words is "one hundred twenty-one billion, five hundred twenty-five million, one hundred forty thousand, four hundred ten".