20012001011268 has 48 divisors (see below), whose sum is σ = 53421688233984. Its totient is φ = 5711676838560.

The previous prime is 20012001011267. The next prime is 20012001011269. The reversal of 20012001011268 is 86211010021002.

It is an interprime number because it is at equal distance from previous prime (20012001011267) and next prime (20012001011269).

It is not an unprimeable number, because it can be changed into a prime (20012001011267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125706148 + ... + 125865243.

It is an arithmetic number, because the mean of its divisors is an integer number (1112951838208).

Almost surely, 2^{20012001011268} is an apocalyptic number.

20012001011268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20012001011268 is an abundant number, since it is smaller than the sum of its proper divisors (33409687222716).

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

20012001011268 is a wasteful number, since it uses less digits than its factorization.

20012001011268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251572352 (or 251572350 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The spelling of 20012001011268 in words is "twenty trillion, twelve billion, one million, eleven thousand, two hundred sixty-eight".