2021031502054 has 4 divisors (see below), whose sum is σ = 3031547253084. Its totient is φ = 1010515751026.

The previous prime is 2021031502019. The next prime is 2021031502057. The reversal of 2021031502054 is 4502051301202.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021031502057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505257875512 + ... + 505257875515.

It is an arithmetic number, because the mean of its divisors is an integer number (757886813271).

Almost surely, 2^{2021031502054} is an apocalyptic number.

2021031502054 is a deficient number, since it is larger than the sum of its proper divisors (1010515751030).

2021031502054 is a wasteful number, since it uses less digits than its factorization.

2021031502054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010515751029.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 2021031502054 its reverse (4502051301202), we get a palindrome (6523082803256).

The spelling of 2021031502054 in words is "two trillion, twenty-one billion, thirty-one million, five hundred two thousand, fifty-four".