121202100340 has 24 divisors (see below), whose sum is σ = 255195995040. Its totient is φ = 48352919328.

The previous prime is 121202100329. The next prime is 121202100403. The reversal of 121202100340 is 43001202121.

It is a congruent number.

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, 7987282 + ... + 8002441.

It is an arithmetic number, because the mean of its divisors is an integer number (10633166460).

Almost surely, 2^121202100340 is an apocalyptic number.

121202100340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202100340 is an abundant number, since it is smaller than the sum of its proper divisors (133993894700).

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

121202100340 is a wasteful number, since it uses less digits than its factorization.

121202100340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15990111 (or 15990109 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121202100340 its reverse (43001202121), we get a palindrome (164203302461).

The spelling of 121202100340 in words is "one hundred twenty-one billion, two hundred two million, one hundred thousand, three hundred forty".