20145000351 has 32 divisors (see below), whose sum is σ = 31703040000. Its totient is φ = 11134585440.

The previous prime is 20145000347. The next prime is 20145000371. The reversal of 20145000351 is 15300054102.

It is not a de Polignac number, because 20145000351 - 2² = 20145000347 is a prime.

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 (20145000371) 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, 1555300 + ... + 1568198.

It is an arithmetic number, because the mean of its divisors is an integer number (990720000).

Almost surely, 2^20145000351 is an apocalyptic number.

20145000351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20145000351 is a deficient number, since it is larger than the sum of its proper divisors (11558039649).

20145000351 is a wasteful number, since it uses less digits than its factorization.

20145000351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15339.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20145000351 its reverse (15300054102), we get a palindrome (35445054453).

The spelling of 20145000351 in words is "twenty billion, one hundred forty-five million, three hundred fifty-one", and thus it is an aban number.