2120000139451 has 2 divisors, whose sum is σ = 2120000139452. Its totient is φ = 2120000139450.

The previous prime is 2120000139421. The next prime is 2120000139487. The reversal of 2120000139451 is 1549310000212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120000139451 - 2¹³ = 2120000131259 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120000139421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000069725 + 1060000069726.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000069726).

Almost surely, 2^{2120000139451} is an apocalyptic number.

2120000139451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120000139451 is an equidigital number, since it uses as much as digits as its factorization.

2120000139451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 2120000139451 its reverse (1549310000212), we get a palindrome (3669310139663).

The spelling of 2120000139451 in words is "two trillion, one hundred twenty billion, one hundred thirty-nine thousand, four hundred fifty-one".