121130232312020 has 48 divisors (see below), whose sum is σ = 269337536732880. Its totient is φ = 45601817001984.

The previous prime is 121130232311993. The next prime is 121130232312053. The reversal of 121130232312020 is 20213232031121.

It can be written as a sum of positive squares in 8 ways, for example, as 11561550451984 + 109568681860036 = 3400228^2 + 10467506^2 .

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, 200505452 + ... + 201108668.

It is an arithmetic number, because the mean of its divisors is an integer number (5611198681935).

Almost surely, 2^{121130232312020} is an apocalyptic number.

121130232312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121130232312020 is an abundant number, since it is smaller than the sum of its proper divisors (148207304420860).

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

121130232312020 is a wasteful number, since it uses less digits than its factorization.

121130232312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193852 (or 1193850 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121130232312020 its reverse (20213232031121), we get a palindrome (141343464343141).

The spelling of 121130232312020 in words is "one hundred twenty-one trillion, one hundred thirty billion, two hundred thirty-two million, three hundred twelve thousand, twenty".