121703461390 has 24 divisors (see below), whose sum is σ = 254832146712. Its totient is φ = 41726900880.

The previous prime is 121703461357. The next prime is 121703461393. The reversal of 121703461390 is 93164307121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121703461393) 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, 124186716 + ... + 124187695.

It is an arithmetic number, because the mean of its divisors is an integer number (10618006113).

Almost surely, 2^121703461390 is an apocalyptic number.

121703461390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121703461390 is an abundant number, since it is smaller than the sum of its proper divisors (133128685322).

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

121703461390 is a wasteful number, since it uses less digits than its factorization.

121703461390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248374432 (or 248374425 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 121703461390 in words is "one hundred twenty-one billion, seven hundred three million, four hundred sixty-one thousand, three hundred ninety".