20401011139 has 2 divisors, whose sum is σ = 20401011140. Its totient is φ = 20401011138.

The previous prime is 20401011121. The next prime is 20401011157. The reversal of 20401011139 is 93111010402.

It is a balanced prime because it is at equal distance from previous prime (20401011121) and next prime (20401011157).

It is a cyclic number.

It is not a de Polignac number, because 20401011139 - 2⁷ = 20401011011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20401011119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10200505569 + 10200505570.

It is an arithmetic number, because the mean of its divisors is an integer number (10200505570).

Almost surely, 2^20401011139 is an apocalyptic number.

20401011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20401011139 is an equidigital number, since it uses as much as digits as its factorization.

20401011139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 20401011139 in words is "twenty billion, four hundred one million, eleven thousand, one hundred thirty-nine".