20121301130133 has 32 divisors (see below), whose sum is σ = 32287642675200. Its totient is φ = 10897079345856.

The previous prime is 20121301130129. The next prime is 20121301130137. The reversal of 20121301130133 is 33103110312102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20121301130129) and next prime (20121301130137).

It is not a de Polignac number, because 20121301130133 - 2² = 20121301130129 is a prime.

It is a super-4 number, since 4×20121301130133⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121301130137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191043723 + ... + 191149016.

It is an arithmetic number, because the mean of its divisors is an integer number (1008988833600).

Almost surely, 2^{20121301130133} is an apocalyptic number.

20121301130133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20121301130133 is a deficient number, since it is larger than the sum of its proper divisors (12166341545067).

20121301130133 is a wasteful number, since it uses less digits than its factorization.

20121301130133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382192881.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20121301130133 its reverse (33103110312102), we get a palindrome (53224411442235).

The spelling of 20121301130133 in words is "twenty trillion, one hundred twenty-one billion, three hundred one million, one hundred thirty thousand, one hundred thirty-three".