121363423156 has 24 divisors (see below), whose sum is σ = 221633161344. Its totient is φ = 58039972320.

The previous prime is 121363423141. The next prime is 121363423157. The reversal of 121363423156 is 651324363121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121363423157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308321 + ... + 2360311.

It is an arithmetic number, because the mean of its divisors is an integer number (9234715056).

Almost surely, 2^121363423156 is an apocalyptic number.

It is an amenable number.

121363423156 is a deficient number, since it is larger than the sum of its proper divisors (100269738188).

121363423156 is a wasteful number, since it uses less digits than its factorization.

121363423156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77391 (or 77389 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

Adding to 121363423156 its reverse (651324363121), we get a palindrome (772687786277).

The spelling of 121363423156 in words is "one hundred twenty-one billion, three hundred sixty-three million, four hundred twenty-three thousand, one hundred fifty-six".