121100030111020 has 12 divisors (see below), whose sum is σ = 254310063233184. Its totient is φ = 48440012044400.

The previous prime is 121100030110919. The next prime is 121100030111057. The reversal of 121100030111020 is 20111030001121.

It is a happy 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, 3027500752756 + ... + 3027500752795.

It is an arithmetic number, because the mean of its divisors is an integer number (21192505269432).

Almost surely, 2^{121100030111020} is an apocalyptic number.

121100030111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121100030111020 is an abundant number, since it is smaller than the sum of its proper divisors (133210033122164).

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

121100030111020 is a wasteful number, since it uses less digits than its factorization.

121100030111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055001505560 (or 6055001505558 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121100030111020 its reverse (20111030001121), we get a palindrome (141211060112141).

The spelling of 121100030111020 in words is "one hundred twenty-one trillion, one hundred billion, thirty million, one hundred eleven thousand, twenty".