11342779381 has 8 divisors (see below), whose sum is σ = 11607995520. Its totient is φ = 11077628352.

The previous prime is 11342779369. The next prime is 11342779387. The reversal of 11342779381 is 18397724311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11342779381 is a prime.

It is a super-2 number, since 2×11342779381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11342779387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660996 + ... + 677938.

It is an arithmetic number, because the mean of its divisors is an integer number (1450999440).

Almost surely, 2^11342779381 is an apocalyptic number.

It is an amenable number.

11342779381 is a deficient number, since it is larger than the sum of its proper divisors (265216139).

11342779381 is a wasteful number, since it uses less digits than its factorization.

11342779381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32555.

The product of its digits is 254016, while the sum is 46.

The spelling of 11342779381 in words is "eleven billion, three hundred forty-two million, seven hundred seventy-nine thousand, three hundred eighty-one".