1051655101631 has 2 divisors, whose sum is σ = 1051655101632. Its totient is φ = 1051655101630.

The previous prime is 1051655101591. The next prime is 1051655101639. The reversal of 1051655101631 is 1361015561501.

It is a strong prime.

It is an emirp because it is prime and its reverse (1361015561501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051655101631 is a prime.

It is a super-2 number, since 2×1051655101631² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1051655101591 and 1051655101600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051655101639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525827550815 + 525827550816.

It is an arithmetic number, because the mean of its divisors is an integer number (525827550816).

Almost surely, 2^{1051655101631} is an apocalyptic number.

1051655101631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051655101631 is an equidigital number, since it uses as much as digits as its factorization.

1051655101631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 35.

The spelling of 1051655101631 in words is "one trillion, fifty-one billion, six hundred fifty-five million, one hundred one thousand, six hundred thirty-one".