121244042130 has 32 divisors (see below), whose sum is σ = 291007911168. Its totient is φ = 32329276800.

The previous prime is 121244042113. The next prime is 121244042149. The reversal of 121244042130 is 31240442121.

It is a self number, because there is not a number n which added to its sum of digits gives 121244042130.

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, 263950 + ... + 558710.

It is an arithmetic number, because the mean of its divisors is an integer number (9093997224).

Almost surely, 2^121244042130 is an apocalyptic number.

121244042130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121244042130 is an abundant number, since it is smaller than the sum of its proper divisors (169763869038).

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

121244042130 is a wasteful number, since it uses less digits than its factorization.

121244042130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308482.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121244042130 its reverse (31240442121), we get a palindrome (152484484251).

The spelling of 121244042130 in words is "one hundred twenty-one billion, two hundred forty-four million, forty-two thousand, one hundred thirty".