121302200030 has 32 divisors (see below), whose sum is σ = 238227226848. Its totient is φ = 44103628800.

The previous prime is 121302199957. The next prime is 121302200051. The reversal of 121302200030 is 30002203121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121302199978 and 121302200014.

It is a congruent number.

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, 738650 + ... + 887810.

It is an arithmetic number, because the mean of its divisors is an integer number (7444600839).

Almost surely, 2^121302200030 is an apocalyptic number.

121302200030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121302200030 is a deficient number, since it is larger than the sum of its proper divisors (116925026818).

121302200030 is a wasteful number, since it uses less digits than its factorization.

121302200030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156572.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 121302200030 its reverse (30002203121), we get a palindrome (151304403151).

The spelling of 121302200030 in words is "one hundred twenty-one billion, three hundred two million, two hundred thousand, thirty".