121237124790 has 32 divisors (see below), whose sum is σ = 301002518880. Its totient is φ = 31215075584.

The previous prime is 121237124777. The next prime is 121237124803. The reversal of 121237124790 is 97421732121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121237124777) and next prime (121237124803).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69675639 + ... + 69677378.

It is an arithmetic number, because the mean of its divisors is an integer number (9406328715).

Almost surely, 2^121237124790 is an apocalyptic number.

121237124790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121237124790 is an abundant number, since it is smaller than the sum of its proper divisors (179765394090).

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

121237124790 is a wasteful number, since it uses less digits than its factorization.

121237124790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139353056.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 121237124790 in words is "one hundred twenty-one billion, two hundred thirty-seven million, one hundred twenty-four thousand, seven hundred ninety".