121210001430 has 32 divisors (see below), whose sum is σ = 332461718784. Its totient is φ = 27705143136.

The previous prime is 121210001401. The next prime is 121210001443. The reversal of 121210001430 is 34100012121.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 288595032 + ... + 288595451.

It is an arithmetic number, because the mean of its divisors is an integer number (10389428712).

Almost surely, 2^121210001430 is an apocalyptic number.

121210001430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210001430 is an abundant number, since it is smaller than the sum of its proper divisors (211251717354).

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

121210001430 is a wasteful number, since it uses less digits than its factorization.

121210001430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577190500.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121210001430 its reverse (34100012121), we get a palindrome (155310013551).

The spelling of 121210001430 in words is "one hundred twenty-one billion, two hundred ten million, one thousand, four hundred thirty".