2051253131420 has 48 divisors (see below), whose sum is σ = 4341986761728. Its totient is φ = 813958709760.

The previous prime is 2051253131407. The next prime is 2051253131593. The reversal of 2051253131420 is 241313521502.

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, 29411390 + ... + 29481050.

It is an arithmetic number, because the mean of its divisors is an integer number (90458057536).

Almost surely, 2^{2051253131420} is an apocalyptic number.

2051253131420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051253131420 is an abundant number, since it is smaller than the sum of its proper divisors (2290733630308).

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

2051253131420 is a wasteful number, since it uses less digits than its factorization.

2051253131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81390 (or 81388 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 2051253131420 its reverse (241313521502), we get a palindrome (2292566652922).

The spelling of 2051253131420 in words is "two trillion, fifty-one billion, two hundred fifty-three million, one hundred thirty-one thousand, four hundred twenty".