121203432112 has 40 divisors (see below), whose sum is σ = 268796573696. Its totient is φ = 51863512896.

The previous prime is 121203432107. The next prime is 121203432121. The reversal of 121203432112 is 211234302121.

It is a super-3 number, since 3×121203432112³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769488 + ... + 913519.

Almost surely, 2^121203432112 is an apocalyptic number.

It is an amenable number.

121203432112 is an abundant number, since it is smaller than the sum of its proper divisors (147593141584).

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

121203432112 is a wasteful number, since it uses less digits than its factorization.

121203432112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683665 (or 1683659 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121203432112 its reverse (211234302121), we get a palindrome (332437734233).

The spelling of 121203432112 in words is "one hundred twenty-one billion, two hundred three million, four hundred thirty-two thousand, one hundred twelve".