120401242111100 has 36 divisors (see below), whose sum is σ = 262624429596144. Its totient is φ = 47910960583680.

The previous prime is 120401242111043. The next prime is 120401242111103. The reversal of 120401242111100 is 1111242104021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120401242111103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3119183864 + ... + 3119222463.

Almost surely, 2^{120401242111100} is an apocalyptic number.

120401242111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120401242111100 is an abundant number, since it is smaller than the sum of its proper divisors (142223187485044).

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

120401242111100 is a wasteful number, since it uses less digits than its factorization.

120401242111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6238406534 (or 6238406527 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 120401242111100 its reverse (1111242104021), we get a palindrome (121512484215121).

The spelling of 120401242111100 in words is "one hundred twenty trillion, four hundred one billion, two hundred forty-two million, one hundred eleven thousand, one hundred".