2031121411020 has 144 divisors (see below), whose sum is σ = 7025290665120. Its totient is φ = 470558435328.

The previous prime is 2031121411019. The next prime is 2031121411021. The reversal of 2031121411020 is 201141211302.

2031121411020 is a `hidden beast` number, since 203 + 11 + 21 + 411 + 0 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (2031121411019) and next prime (2031121411021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2031121410984 and 2031121411002.

It is not an unprimeable number, because it can be changed into a prime (2031121411021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25489650 + ... + 25569209.

It is an arithmetic number, because the mean of its divisors is an integer number (48786740730).

Almost surely, 2^{2031121411020} is an apocalyptic number.

2031121411020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031121411020 is an abundant number, since it is smaller than the sum of its proper divisors (4994169254100).

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

2031121411020 is a wasteful number, since it uses less digits than its factorization.

2031121411020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51058904 (or 51058899 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2031121411020 its reverse (201141211302), we get a palindrome (2232262622322).

The spelling of 2031121411020 in words is "two trillion, thirty-one billion, one hundred twenty-one million, four hundred eleven thousand, twenty".